Tech
Could digital currencies end banking as we know it? The future of money
Throughout history, control over money has been one of the most powerful levers of state authority. Rulers have long understood that whoever issues and manages the currency also commands the economy and, by extension, society itself.
In Tudor England, Henry VIII’s “Great Debasement” between 1542 and 1551 reduced the silver content of coins from more than 90% to barely one-third, while leaving the king’s portrait shining on the surface, of course. The policy financed wars and courtly extravagance, but also fueled inflation and public distrust in coinage.
Centuries earlier, Roman emperors had resorted to similar tricks with the denarius, steadily reducing its silver content until by the 3rd century AD, it contained little more than trace amounts, undermining its credibility and contributing to economic instability.
Outside Europe, the same pattern held. In 11th-century China, the Song dynasty pioneered paper money, extending state control over taxation and trade. This was a groundbreaking innovation, but later dynasties such as the Ming over-issued notes, sparking inflation and loss of trust in the currency.
Such episodes underline a timeless truth: money is never neutral. It has always been an instrument of governance—whether to project authority, consolidate control or disguise fiscal weakness. The establishment of central banks, from the Bank of England in 1694 to the US Federal Reserve in 1913, formalized that authority.
Today, the same story is entering a new digital chapter. As Axel van Trotsenburg, senior managing director of the World Bank, wrote in 2024: “Embracing digitalization is no longer a choice. It’s a necessity.” By this he meant not simply switching to online banking, but making the currencies we use, and the mechanisms for regulating it, entirely digital.
Just as rulers once clipped coins or over-printed notes, governments are now testing how far digital money can extend their reach—both within and beyond national boundaries. Of course, different governments and political systems have very different ideas about how the money of the future should be designed.
In March 2024, then-former President Trump, back on the hustings trail, declared: “As your president, I will never allow the creation of a central bank digital currency.” It was a campaign moment, but also a salvo in a much larger battle—not just over the future of money, but who controls it.
In the US, the issuance of currency—whether in the form of physical cash or digital bank deposits and electronic payments—has traditionally been monopolized by the Federal Reserve (more commonly known as “the Fed”), a technocratic institution designed to operate independently from the elected government and houses. But Trump’s hostility toward the Fed is well-documented, and noisy.
During his second term, Trump has publicly berated the Fed’s chair, Jerome Powell, calling him “a stubborn MORON” over his interest rate policies, and even floating the idea of replacing him. Trump’s discomfort with the Fed’s autonomy echoes earlier populist movements such as President Andrew Jackson’s 1830s crusade against the Second Bank of the United States, when federal financial elites were portrayed as obstacles to democratic control of money.
In March 2025, when Trump issued an executive order establishing a Strategic Bitcoin Reserve, he signaled the opening of a new front in this institutional battle. By incorporating bitcoin into an official US reserve, the world’s largest economy is, for the first time, sanctioning its use as part of state financial infrastructure.
For a leader like Trump, who has consistently sought to break, bypass or dominate independent institutions—from the judiciary to intelligence agencies—the idea of replacing the Fed’s influence with a state-aligned crypto ecosystem may represent the ultimate act of executive assertion.
Such a step reframes bitcoin as more than an investment fad or criminal fallback; it is being drawn into the formal monetary system—in the US, at least.
America’s crypto future?
Bitcoin is, by a distance, the world’s most valuable cryptocurrency (at the time of writing, one coin is worth just shy of US$120,000) having established a record high in August 2025. Like gold, its value is ensured in part by its finite supply, and its security by the blockchain technology that makes it unhackable.
For most who buy bitcoins, its key value is not as a currency but a speculative investment product—a kind of “digital gold” or high-risk stock that investors buy hoping for big returns. Many people have indeed made millions from their purchases.
But now, thanks in particular to Trump’s aggressively pro-crypto, anti-central bank approach, bitcoin’s potential role as part of a new form of state-controlled digital currency is in the spotlight like never before.
Trump’s framing of bitcoin as “freedom money” reflects its traditional sales pitch as being censorship-resistant, unreviewable, and free from state control. At the same time, his blurring of public authority and private financial interest, when it comes to cryptocurrencies, has raised some serious ethical and governance concerns.
But the crucial innovation here is that Trump is not proposing a truly libertarian system. It is a hybrid model: one where the issuance of money may become privatized while control of the US’s financial reserve strategy—and associated political and economic narratives—remains firmly in state hands.
This raises provocative questions about the future of the Federal Reserve. Could it be sidelined not through legal abolition, but by the growing relevance of parallel monetary systems blessed by the executive? The possibility is no longer far-fetched.
According to a 2023 paper published by the Bank for International Settlements, a powerful if little-known organization that coordinates central bank policy globally: “The decentralization of monetary functions across public and private actors introduces a new era of contestable monetary sovereignty.”
In plain English, this means money is no longer the sole domain of states. Tech firms, decentralized communities and even AI-powered platforms are now building alternative value systems that challenge the monopoly of national currencies.
Calls to diminish the role of central banks in shaping macroeconomic outcomes are closely tied to the rise of what the University of Cambridge’s Bennett School of Public Policy calls “crypto populism”—a movement that shifts legitimacy away from unelected technocrats towards “the people,” whether they are retail investors, cryptocurrency miners or politically aligned firms.
Supporters of this agenda argue that central banks have too much unchecked power, from manipulating interest rates to bailing out financial elites, while ordinary savers bear the costs through inflation or higher borrowing charges.
In the US, Trump and his advisers have become the most visible proponents, tying bitcoin and also so-called “stablecoins” (cryptocurrencies designed to maintain a stable value by being pegged to an external asset) to a broader populist narrative about wresting control from elites.
The emergence of this dual monetary system is causing deep unease in traditional financial institutions. Even the economist-activist Yanis Varoufakis—a long-time critic of central banks—has warned of the dangers of Trump’s approach, suggesting that US private stablecoin legislation could deliberately weaken the Fed’s grip on money, while “depriving it of the means to clean up the inevitable mess” that will follow.
Weaponization of the dollar
Some rival US nations also feel deep unease about its approach to money—in part because of what analysts call the “weaponization of the dollar”. This describes how US financial dominance, via Swift and correspondent banking systems, has long enabled sanctions that effectively exclude targeted governments, companies or individuals from global finance.
These tools have been used extensively against Iran, Russia, Venezuela and others—triggering efforts by countries including China, Russia and even some EU states to build alternative payment systems and digital currencies, aimed at reducing dependency on the dollar. As the Atlantic put it in 2023, the US appeared to be “pushing away allies and adversaries alike by turning its currency into a geopolitical bludgeon.”
Spurred on by these concerns and an increasing desire to delink from the dollar as the world’s anchor currency, many countries are now moving towards creating their own central bank digital currencies (CBDCs)—government-issued digital currencies backed and regulated by state institutions.
While fully live CBDCs are already in use in countries ranging from the Bahamas and Jamaica to Nigeria, many more are in active pilot phases—including China’s digital yuan (e-CNY). Having been trialed in multiple cities since 2019, the e-CNY now has millions of domestic users and, by mid-2024, had processed nearly US$1 trillion in retail transactions.
A key part of Beijing’s ambition is to use the digital yuan as a strategic hedge against dollar-based clearance systems, positioning it as part of a wider plan to reduce China’s reliance on the US dollar in international trade. Likewise, the European Central Bank has framed its digital euro—which entered its preparation phase in October 2023—as essential to future European monetary sovereignty, stating that it would reduce reliance on non-European (often US-controlled) digital payment providers such as Visa, Mastercard and PayPal.
In this way, CBDCs are becoming a new front in global competition over who sets the rules of money, trade and financial sovereignty in the digital age. As governments rush to build and test these systems, technologists, civil libertarians and financial institutions are clashing over how best to do this—and whether the world should embrace or fear the rise of central bank digital currencies.
Trojan horses for surveillance?
The experience of using a CBDC will be much like today’s mobile banking apps: you’ll receive your salary directly into a digital wallet, make instant payments in shops or online, and transfer money to friends in seconds. The key difference is all of that money will be a direct claim on the central bank, guaranteed by the state, rather than a private bank.
In many countries, CBDCs are being pitched as more efficient tools for economic inclusion and societal benefit. A 2023 Bank of England consultation paper emphasized that its proposal for a digital pound would be “privacy-respecting by design” and “non-programmable by the state.” It would not replace cash but sit alongside it, the BoE suggested, with each citizen allowed to hold up to a capped limit digital pounds (suggested at £10,000-£20,000) to avoid destabilizing commercial bank deposits.
However, some critics see CBDCs as Trojan horses for surveillance. In 2019, a report by the professional services network PWC suggested that CBDCs, if unchecked, could entrench executive power by removing intermediary financial institutions and enabling programmable, direct government control over citizen transactions. According to the report, this could mean stimulus payments that expire if not spent within 30 days, or taxes deducted at the moment of transaction. In other words, CBDCs could be tools of efficiency—but also of unprecedented oversight.
A 2024 CFA Institute paper warned that digital currencies could allow governments to trace, tax or block payments in real time—tools that authoritarian regimes might embrace. The Bank for International Settlements (BIS) has called the advent of this “programmable money” inevitable.
Imagine, for example, a parent transferring 20 digital pounds to their child’s CBDC wallet, but with a rule that this money can only be spent on food, not video games. When the child uses it at a supermarket, their payment is programmed so that the retailer’s suppliers and the tax authority are paid instantly (£15 to the shop, £3 to wholesalers, £2 straight to the tax office) with no extra steps. In theory, at least, everyone is happy: the parent sees the child spent the money responsibly, the suppliers are paid immediately, and the retailer’s tax bill is settled automatically.
In technical terms, programmable payments such as this are straightforward for CBDCs. But such a system raises big questions about privacy and personal freedom. Some critics fear that programmable CBDCs might be used to restrict spending on disapproved categories such as alcohol and fuel, create expiry dates for unemployment benefits, or enforce climate targets through money flow limits. The BIS has warned that CBDCs should be “designed with safeguards” to preserve user privacy, financial inclusion and interoperability across borders.
Even well-intentioned digital systems can create tools of surveillance. CBDC architecture choices, such as default privacy settings, tiered access or transaction expiry can all shape the extent of executive control embedded in the system. If designed without democratic oversight, these infrastructures risk institutional capture.
Some CBDC pilots—including China’s e-CNY, the Sand Dollar and the eNaira—have been criticized for omitting clear privacy guarantees, with their respective central banks deferring decisions on privacy protections to future legislation. According to Norbert Michel, director of the Cato Institute’s Center for Monetary and Financial Alternatives and one of the most prominent US voices warning about the risks of CBDCs:
“A fully implemented CBDC gives the government complete control over the money going into, and coming out of, every person’s account. It’s not difficult to see that this level of government control is incompatible with both economic and political freedom.”
Fears of mission creep
The concerns being raised about central bank digital currencies extend beyond personal payment controls. A recent analysis by Rand Corporation highlighted how law enforcement capabilities could dramatically increase with the introduction of CBDCs. While this could strengthen efforts to stop money laundering and the financing of terrorism, it also raises fears of “mission creep,” whereby the same tools could be used to police ordinary citizens’ spending or political activities.
Concerns about mission creep—the idea that a system introduced for limited goals (efficiency, anti-money laundering) gradually expands into broader tools of control—extend into other areas of digital authoritarianism. The Bennett School has cautioned that without legal and political safeguards, CBDCs risk empowering state surveillance and undermining democratic oversight, especially in an interconnected global system.
It is not anti-technology or overly conspiratorial to ask hard questions about the design, governance and safeguards built into our future money. The legitimacy of CBDCs will hinge on public trust, and that trust must be earned. As has been highlighted by the OECD, democratic values like privacy, civic trust and rights protection must all be integral to CBDC design.
The future of money
Predictably, the public view of what we want our money to look like in future is mixed. The tensions we see between centralized CBDCs and decentralized alternatives reflect fundamentally different philosophies.
In the US, populist rhetoric has found a strong base among cryptocurrency investors and libertarian movements. At the same time, surveys in Europe suggest many people remain skeptical of replacing a central bank’s authority, associating it with stability and trustworthiness.
For the US Federal Reserve, the debate over bitcoin, decentralized finance (“DeFi”) and stablecoins goes to the heart of American financial power. Behind closed doors, some US officials worry that both the unchecked use of stablecoins and a widespread adoption of foreign CBDCs like China’s e‑CNY will erode the dollar’s central role and weaken the US’s monetary policy apparatus.
In this context, Trump’s push to elevate crypto into a US Strategic Bitcoin Reserve carries serious implications. While US officials generally avoid direct comment on partisan moves, their policy documents make the stakes clear: if crypto expands outside regulatory boundaries, this could undermine financial stability and weaken the very tools—from monetary policy to sanctions—that sustain the dollar’s global dominance.
Meanwhile, the Bank of England’s governor, Andrew Bailey, writing in the Financial Times this week, sounded more accommodating of a financial future that includes stablecoins, suggesting: “It is possible, at least partially, to separate money from credit provision, with banks and stablecoins coexisting and non-banks carrying out more of the credit provision role.” He has previously stressed that stablecoins must “pass the test of singleness of money,” ensuring that one pound always equals one pound (something that cannot be guaranteed if a currency is backed by risky assets).
This isn’t just caution for caution’s sake—it’s grounded in both history and recent events.
During the US’s Free Banking Era in the middle of the 19th century, state-chartered banks could issue their own paper money (banknotes) with little oversight. These “wildcat banks” often issued more notes than they could redeem, especially when economic stress hit—meaning people holding those notes found they weren’t worth the paper they were printed on.
A much more recent example is the collapse of TerraUSD (UST) in May 2022. Terra was a so-called stablecoin that was supposed to keep its value pegged 1:1 with the US dollar. In practice, it relied on algorithms and reserves that turned out to be fragile. When confidence cracked, UST lost its peg, dropping from $1 to as low as 10 cents in a matter of days. The crash wiped out over US$40 billion (around £29 billion) in value and shook trust in the whole stablecoin sector.
But Bailey’s crypto caution extends to CBDCs too. In his most recent Mansion House speech, the Bank of England governor said he remains unconvinced of the need for a “Britcoin” CBDC, so long as improvements to bank payment systems (such as making bank transfers faster, cheaper and more user-friendly) prove effective.
Ultimately, the form our money takes in future is not a question of technology so much as trust. In its latest guidance, the IMF underscores the necessity of earning public trust, not assuming it, by involving citizens, watchdog groups and independent experts in CBDC design, rather than allowing central banks or big tech to shape it unilaterally.
If done right, digital money could be more inclusive, more transparent, and more efficient than today’s systems. But that future is not guaranteed. The code is already being written—the question is: by who, and with what values?
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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If you’ve been dreaming all year of saving serious cash on a new mattress, you have a few more hours before the alarm goes off. From the best mattresses for back pain to our favorite cooling options, these are the top deals on mattresses the WIRED Reviews team has tested in their own homes. We also track prices all year to see where the best sales are really happening. And Cyber Monday brings some of the best sleep deals you’ll see all year.
If it’s on this list, it’s genuinely a good deal on a product someone from our team has tested and approved of. While the prices listed below are for queen sizes, the deals should apply to all mattress sizes. Your dreams of a new king mattress are still going strong.
Updated 2 pm ET December 1: We’ve added new sales from Sleep Number and Thuma, and ensured up-to-date links and prices.
WIRED Featured Deals
Bear
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Photograph: Nena Farrell
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Courtesy of Bear
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The WIRED Reviews team has crowned the Bear Elite Hybrid as the best mattress for back pain we’ve tested to date. It comes in three firmness options, including Soft, Medium, and Firm. WIRED testers have found Firm helpful for spinal alignment, and you can also add a Celliant cover for a fee, designed to help with muscle recovery. In addition to the sale, Bear is also throwing in a free accessories bundle (two pillows, a sheet set, and a mattress protector). Use WIRED40 for 40 percent off, which is an additional 5 percent off the offer you’ll see on the site.
Helix
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Courtesy of Helix Sleep
Helix Sleep
Midnight Luxe Hybrid Mattress (14-Inch)
We test many, many mattresses—so it’s saying something that the Helix Midnight Luxe has been our favorite overall mattress for seven years running. This specific model is designed for side sleepers, but the brand’s slogan is “designed for every body,” and there are plenty of options for every sleeping position. Helix’s Cyber Week sale is underway, but you can get additional savings by using our exclusive coupon code WIRED27 for 27 percent off.
Saatva
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Photograph: Nena Farrell
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Courtesy of Saatva
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Saatva mattresses strive to be the intersection of luxury, natural materials, and support for many sleepers. One model in particular that we’ve tested, the Saatva Rx, offers serious pressure relief for even the most persistent aches and pains. It incorporates micro coils and pressure-relief foam, so the price is usually on the higher side. However, Saatva’s holiday sales promo should take some strain off your wallet, as you can save $400 off purchases of $1,000 or more. Use our link below.
Sleep Number
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Photograph: Julia Forbes
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Photograph: Julia Forbes
If you’re trying to decide between a sleep tracker or a new mattress, I’ve got news for you—Sleep Number can do both. The p6 is a smart bed that lets you adjust your preferred firmness; pressure relief levels; and, paired with an adjustable base, the angle of the head and foot of the bed. It also tracks your sleep, noting any changes in your heart rate, breathing, and deep sleep. Sleep Number is offering free shipping plus discounts for bed and base bundles. Free shipping’s a big deal because it’s usually a separate fee from Sleep Number for a team to come set up the bed for you. Now, it’s just part of your purchase.
Casper
Courtesy of Casper
Casper
Original Hybrid Mattress (12-Inch)
Amazon’s current price on this Casper hybrid is slightly lower than we saw for Prime Day, at just over $1,000 for a queen from Amazon. Casper was one of the original American mattresses-in-a-box makers, though the company has been bought and sold a few times. We like this mattress for pressure relief but it has heightened support thanks to the coils. There’s also a sale on a Casper pillow we like below.
Birch
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Courtesy of Birch
Birch
Luxe Natural Mattress
If you’re looking to get memory foams and other man-made materials out of your bedroom in favor of an all-organic mattress, the Birch Luxe Natural has been a consistent winner for us. It has an organic cotton Euro top that gives your pressure points a cushioned surface to slightly sink into. Layers of natural wool are incorporated underneath for breathable temperature control. Latex is pressure-relieving, like memory foam, but without any chemicals involved. It’s also organic, with Global Organic Latex Standard (GOLS) certification. Pocketed coils help support you where you need it most. Birch is also throwing in two free pillows with every mattress purchase. To make it even better, you can use code WIRED27 for even more savings.
Airweave
Photograph: Martin Cizmar
Airweave
Airweave Advanced (Queen)
There is a significant savings on a mattress we really liked for its firmness and portability, while balking at the price in our review. The Airweave’s filling is made from a unique ultrafine woven polyethylene, which looks like uncooked glass noodles or a tangle of fishing line. It functions like super micro coils and offers a somewhat stiff but very. supportive sleeping surface. Best of all, it can be disassembled for easy moving, and the cover is washable.
Silk & Snow
Courtesy of Silk & Snow
Silk & Snow
S&S Organic Mattress
Canadian brand Silk & Snow uses high-quality materials and thoughtful construction in its mattresses, with prices that are hard to argue with. In the S&S Organic hybrid’s case, there are several organic certifications too. With GOLS-certified organic cotton, organic wool, and GOLS-certified latex atop pocketed coils, it eliminates any guesswork about materials and focuses solely on support. For holiday shoppers, Silk & Snow is offering up to $300 off on mattresses, no code needed.
Avocado
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Photograph: Scott Gilbertson
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Photograph: Scott Gilbertson
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Photograph: Melissa Krused/Avocado Mattress
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Avocado
Green Organic Hybrid Mattress
Avocado takes the notion of “all-natural” mattresses very seriously, with an extensive list of certifications to back its claims. The Avocado Green hybrid mattress comes in Firm (base model), Medium (pillow top), and Plush (box top, which is an even thicker version of a softer pillow top). Medium and Plush cost a bit extra, but we previously tested the Firm model and loved it. Its organic latex and coil construction provided lumbar support, temperature regulation, and pressure relief to the point where it got a near-perfect score. For Avocado’s holiday mattress sale, you can take 20 percent off your purchase, no code needed.
Wolf
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Photograph: Julia Forbes
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Photograph: Julia Forbes
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Photograph: Julia Forbes
Wolf
Memory Foam Hybrid Premium Firm Mattress
Wolf mattresses are not ones you should overlook. Each time our team has tested a Wolf mattress, we were impressed with its quality and performance. The Wolf 13-Inch Memory Foam Hybrid Premium Firm Mattress is quite a name, but this hybrid mattress excels with temperature control thanks to a cooling cover, foams, and coils. It’s just firm enough that you can move around without feeling stuck, and it also maintains spinal alignment. Wolf’s Cyber Week mattress sale is now live, with 15 percent off on your purchase.
Tiami
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Photograph: Julia Forbes
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Photograph: Julia Forbes
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Photograph: Julia Forbes
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Photograph: Julia Forbes
Tiami
Luxury Hybrid Mattress
Tiami’s Luxury Hybrid has a firmer feel with cushioning memory foam layers and unique, foam-capped coils that help relieve pressure around your joints. It’s a specialty mattress through and through, which makes Tiami’s current mattress sale even more enticing. It’s the lowest price we’ve seen all year, thanks to its Cyber Monday promo at 40 percent off, no code needed.
Essentia
Courtesy of Essentia
Essentia
Tatami Organic Mattress
You’re searching high and low for an organic mattress, but not just any organic mattress will do—it has to be vegan as well. (Many organic mattresses aren’t vegan due to the inclusion of wool.) For those who aim to live (and sleep!) by vegan protocols, Essentia’s Tatami mattress is right up your alley. It’s got organic cotton, organic latex, and organic foam all meant for pressure relief, temperature control, and strong lumbar support. Essentia is offering 25 percent off mattresses plus two free pillows as part of its holiday mattress sale. (Discount reflected in cart.)
Naturepedic
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Photograph: Martin Cizmar
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Courtesy of Naturepedic
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Naturepedic
EOS Classic Organic Mattress
Naturepedic checks a lot of boxes with its EOS Classic mattress. It’s got customizable firmness on each side of the mattress. It’s one of the best mattresses we’ve tested to date. It’s also made with organic materials, making it one of the best organic mattresses we’ve come across. Naturepedic is offering 20 percent off sitewide and throwing in a free accessories bundle (organic mattress protector and pillows) on orders of $699 or more.
Leesa
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Photograph: Martin Cizmar
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Courtesy of Leesa
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Leesa’s Sapira Chill Hybrid ranks as one of the best mattresses by our account (more specifically, the best hybrid mattress), thanks to its cooling and lumbar support. It features a quilted pillow top with a cooling cover, along with pressure-relieving foams and pocketed coils. There are three firmness levels to choose from, but if you have back pain, you may want to opt for something firmer to support spine alignment. Plus, the Sapira Chill’s pillow top will soften things out a bit. While the price for this mattress isn’t the lowest we’ve seen this year, Leesa’s holiday sale is pretty good. You can take 30 percent off select mattresses, including the Sapira Chill.
Plank
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Courtesy of Plank
For those who feel like a mattress is never quite firm enough, the Plank Firm is one of the team’s favorite beds that delivers a truly firm feel. It’s actually dual-sided, with one side “firm” and the other “extra firm,” so you can get the utmost, unyielding support. It’s been a hit with some of our testers who have back pain and look to firm beds to maintain spine alignment. To keep your wallet balanced, too, Plank is offering 30 percent off with code BFRIDAY30.
Cyber Monday Bedding Deals
No new mattress setup would be complete without sheets, pillows, bed frames, and sleep accessories. Cyber Monday is the time to get the best of the best, and these are deals we’re pretty hyped about.
Thuma Signature Bed Frame
Courtesy of Thuma
We’re big Thuma fans around here, from the Thuma Hybrid mattress to its Classic Bed frame (review coming soon!). We wish these two items were on sale for Black Friday, but Cyber Monday is a new day with new opportunities, like a sale on Thuma’s Signature Bed frame. Just like the Classic Bed, the Signature Bed frame is a cinch to set up and comes in either soft Italian felt or performance linen. Thuma is offering up to 22 percent off the Signature Bed as part of its Cyber Monday sale.
Casper Sleep Hybrid Snow Pillow
Photograph: Eric Ravenscraft
Casper
Hybrid Snow Pillow (Standard)
Another Casper sale you’ll find on Amazon, reviewer Nena Farrell found this pillow had a lower loft paired with a firmer feel. These are both aspects that stomach sleepers need from their pillows to prevent disturbing their neck’s cervical alignment and causing trouble with their lower backs.
My Green Mattress
Courtesy of My Green Mattress
My Green Mattress
Organic Latex Topper
You’re looking for a quick hack to revitalize your mattress’s support—before your guests arrive for the holidays. Mattress toppers can help buy you some time while increasing pressure relief, support, and overall comfort. This organic latex mattress topper from My Green Mattress has two inches of firmer-feeling, GOLS-certified Dunlop latex. For the holiday, you can get 15 percent off sleep accessories, including this organic latex topper.
Helix
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Photograph: Wired
Helix Sleep
GlacioTex Premium Mattress Topper
Here’s another hypothetical for you, based on personal experience: You know someone living in a dorm, and their mattress just straight-up sucks. Sleep’s crucial for these scholars, and Helix’s GlacioTex Memory Foam Topper is designed to provide pressure relief and temperature regulation to help elevate the lowliest of dorm-room beds (aka, a glorified piece of foam wrapped in a tarp). Use code WIRED27 for 27 percent off this topper.
Cozy Earth
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Photograph: Nena Farrell
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Courtesy of Cozy Earth
Cozy Earth
Bamboo Sheet Set
We’re covering all sorts of Cozy Earth deals right now. But these bamboo sheets are so lovely, we’re giving them a shoutout twice. If you’re still struggling with gift ideas, these sheets are a cooling, luxurious option the recipient will use often (at least, I’d sure use them). Plus, the limited edition seasonal patterns are too whimsical to pass up. These sheets are currently 45 percent off and are selling out quickly.
Brooklinen
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Courtesy of Brooklinen
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Photograph: Louryn Strampe
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Brooklinen
All-Season Down Comforter
If you crave the experience of being wrapped in something similar to a fluffy cloud, chances are you’d really like a down comforter. WIRED reviewer Louryn Strampe likened Brooklinen’s all-season down comforter to something you’d see in a hotel, with its starchy cover and fluffy fill. Brooklinen is continuing its 25 percent off sitewide sale from Black Friday through Cyber Week.
Coop
Photograph: Julia Forbes
Coop Sleep Goods
Original Adjustable Crescent Pillow
The first time I technically tested this crescent pillow was in a friend’s guest room, and I’ve been a fan ever since. This adjustable pillow’s bottom has an arch, allowing your shoulders to press into the pillow and providing more cushion around your neck. You can also add fill (which comes in a separate bag) to make it firmer, or take some out to increase softness. You can take 25 percent off as part of its current sitewide sale.
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I love a digital notebook. I write about them all year long here at WIRED, and it’s not often my favorites go on sale. (Or for any to go on sale, besides Amazon’s own sale events.) But this year, multiple digital notebooks I love are on sale for the biggest sale event of the year.
If you’ve thought about getting one of these for yourself, there’s truly no better moment. From reMarkable’s on-sale bundles to Kobo’s deals, you can shop five of the best digital notebooks we’ve ever tried right now at a lower price than you might find until next year. They’re a handy device just about everyone can enjoy, whether you want to digitally annotate your books or write out your grocery list without using a piece of paper.
Looking for more great sales to shop? Don’t miss our guides to the Best Amazon Device and Kindle Deals, Best Laptop Deals, the Absolute Best Cyber Monday Deals, and our liveblog.
Update Dec. 1: We updated prices, links, and deals, and added the Rocketbook Fusion Plus notebook.
The Best Digital Notebook Deals
Some of the best digital notebooks we’ve tried come from reMarkable, and one of reMarkable’s models always seems to reign supreme over our digital notebooks guide. While the Paper Pro Move is the newest model, the reMarkable Paper Pro that launched in September 2024 is my current all-around favorite. It’s not only powerful with tons of tools and an easy interface, but packs a color screen for colorful notes. It also has a gentle front light so that you can use it in darker environments. You can get the bundles on sale right now, so combine one of reMarkable’s markers and folio covers with a Paper Pro to get $50 off.
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Photograph: Nena Farrell
The best discount from reMarkable is actually for its older device and our previous top pick, the reMarkable 2. It doesn’t have a color screen or the front light, but you’ll get the reMarkable’s great software and options for accessories like the Keyboard Folio to use it like a laptop. The reMarkable 2 bundles are also on sale, so add on your favorite folio of choice on reMarkable’s website to get $70 off.
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Photograph: Nena Farrell
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Courtesy of Kobo
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The Kobo Libra Colour is my favorite all-around e-reader with its color screen and page turner buttons, but you can add on a stylus to have it double as a digital notebook. It’s one of the more affordable options, and it’s a smaller screen than the rest of these, but I especially love that you can use the stylus to doodle on the books you’re reading (something you can’t do with the Kindle Scribe). It’s $30 off on Kobo’s site for Cyber Monday.
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Photograph: Nena Farrell
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Photograph: Nena Farrell
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Courtesy of Amazon
Amazon
Kindle Scribe (2024)
The second-generation Kindle Scribe isn’t the best digital notebook, but the long battery life (12 weeks!!) and convenient starting point of it being a Kindle I could already be reading on makes it a great go-to for casual notetakers and doodlers. It’s a good choice for Kindle and Amazon users, and there are new models due out this winter, but they likely won’t be as cheap as this one. (Especially since some of those new models will have color!)
Photograph: Nena Farrell
If you like the idea of getting a Kobo e-reader that doubles as a digital notebook, you can go for more of a classic size with the larger Elipsa 2E. This one comes with the stylus, so you won’t have to add it on, and it’s $50 off.
Photograph: Nena Farrell
The Rocketbook Fusion Plus digital planner and notebook is for those who don’t want to charge their notebook or give up on the whole “paper” experience. Take notes with the included, erasable Pilot Frixion Pen, scan photos of the pages into the app, and erase the whole thing with the damp microfiber cloth (also included). Fusion Plus is on its steepest discount of recent memory, and comes templates that range from monthly and weekly pages to project management and meeting notes.
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Our muscles are nature’s actuators. The sinewy tissue is what generates the forces that make our bodies move. In recent years, engineers have used real muscle tissue to actuate “biohybrid robots” made from both living tissue and synthetic parts. By pairing lab-grown muscles with synthetic skeletons, researchers are engineering a menagerie of muscle-powered crawlers, walkers, swimmers, and grippers.
But for the most part, these designs are limited in the amount of motion and power they can produce. Now, MIT engineers are aiming to give bio-bots a power lift with artificial tendons.
In a study appearing today in the journal Advanced Science, the researchers developed artificial tendons made from tough and flexible hydrogel. They attached the rubber band-like tendons to either end of a small piece of lab-grown muscle, forming a “muscle-tendon unit.” Then they connected the ends of each artificial tendon to the fingers of a robotic gripper.
When they stimulated the central muscle to contract, the tendons pulled the gripper’s fingers together. The robot pinched its fingers together three times faster, and with 30 times greater force, compared with the same design without the connecting tendons.
The researchers envision the new muscle-tendon unit can be fit to a wide range of biohybrid robot designs, much like a universal engineering element.
“We are introducing artificial tendons as interchangeable connectors between muscle actuators and robotic skeletons,” says lead author Ritu Raman, an assistant professor of mechanical engineering (MechE) at MIT. “Such modularity could make it easier to design a wide range of robotic applications, from microscale surgical tools to adaptive, autonomous exploratory machines.”
The study’s MIT co-authors include graduate students Nicolas Castro, Maheera Bawa, Bastien Aymon, Sonika Kohli, and Angel Bu; undergraduate Annika Marschner; postdoc Ronald Heisser; alumni Sarah J. Wu ’19, SM ’21, PhD ’24 and Laura Rosado ’22, SM ’25; and MechE professors Martin Culpepper and Xuanhe Zhao.
Muscle’s gains
Raman and her colleagues at MIT are at the forefront of biohybrid robotics, a relatively new field that has emerged in the last decade. They focus on combining synthetic, structural robotic parts with living muscle tissue as natural actuators.
“Most actuators that engineers typically work with are really hard to make small,” Raman says. “Past a certain size, the basic physics doesn’t work. The nice thing about muscle is, each cell is an independent actuator that generates force and produces motion. So you could, in principle, make robots that are really small.”
Muscle actuators also come with other advantages, which Raman’s team has already demonstrated: The tissue can grow stronger as it works out, and can naturally heal when injured. For these reasons, Raman and others envision that muscly droids could one day be sent out to explore environments that are too remote or dangerous for humans. Such muscle-bound bots could build up their strength for unforeseen traverses or heal themselves when help is unavailable. Biohybrid bots could also serve as small, surgical assistants that perform delicate, microscale procedures inside the body.
All these future scenarios are motivating Raman and others to find ways to pair living muscles with synthetic skeletons. Designs to date have involved growing a band of muscle and attaching either end to a synthetic skeleton, similar to looping a rubber band around two posts. When the muscle is stimulated to contract, it can pull the parts of a skeleton together to generate a desired motion.
But Raman says this method produces a lot of wasted muscle that is used to attach the tissue to the skeleton rather than to make it move. And that connection isn’t always secure. Muscle is quite soft compared with skeletal structures, and the difference can cause muscle to tear or detach. What’s more, it is often only the contractions in the central part of the muscle that end up doing any work — an amount that’s relatively small and generates little force.
“We thought, how do we stop wasting muscle material, make it more modular so it can attach to anything, and make it work more efficiently?” Raman says. “The solution the body has come up with is to have tendons that are halfway in stiffness between muscle and bone, that allow you to bridge this mechanical mismatch between soft muscle and rigid skeleton. They’re like thin cables that wrap around joints efficiently.”
“Smartly connected”
In their new work, Raman and her colleagues designed artificial tendons to connect natural muscle tissue with a synthetic gripper skeleton. Their material of choice was hydrogel — a squishy yet sturdy polymer-based gel. Raman obtained hydrogel samples from her colleague and co-author Xuanhe Zhao, who has pioneered the development of hydrogels at MIT. Zhao’s group has derived recipes for hydrogels of varying toughness and stretch that can stick to many surfaces, including synthetic and biological materials.
To figure out how tough and stretchy artificial tendons should be in order to work in their gripper design, Raman’s team first modeled the design as a simple system of three types of springs, each representing the central muscle, the two connecting tendons, and the gripper skeleton. They assigned a certain stiffness to the muscle and skeleton, which were previously known, and used this to calculate the stiffness of the connecting tendons that would be required in order to move the gripper by a desired amount.
From this modeling, the team derived a recipe for hydrogel of a certain stiffness. Once the gel was made, the researchers carefully etched the gel into thin cables to form artificial tendons. They attached two tendons to either end of a small sample of muscle tissue, which they grew using lab-standard techniques. They then wrapped each tendon around a small post at the end of each finger of the robotic gripper — a skeleton design that was developed by MechE professor Martin Culpepper, an expert in designing and building precision machines.
When the team stimulated the muscle to contract, the tendons in turn pulled on the gripper to pinch its fingers together. Over multiple experiments, the researchers found that the muscle-tendon gripper worked three times faster and produced 30 times more force compared to when the gripper is actuated just with a band of muscle tissue (and without any artificial tendons). The new tendon-based design also was able to keep up this performance over 7,000 cycles, or muscle contractions.
Overall, Raman saw that the addition of artificial tendons increased the robot’s power-to-weight ratio by 11 times, meaning that the system required far less muscle to do just as much work.
“You just need a small piece of actuator that’s smartly connected to the skeleton,” Raman says. “Normally, if a muscle is really soft and attached to something with high resistance, it will just tear itself before moving anything. But if you attach it to something like a tendon that can resist tearing, it can really transmit its force through the tendon, and it can move a skeleton that it wouldn’t have been able to move otherwise.”
The team’s new muscle-tendon design successfully merges biology with robotics, says biomedical engineer Simone Schürle-Finke, associate professor of health sciences and technology at ETH Zürich.
“The tough-hydrogel tendons create a more physiological muscle–tendon–bone architecture, which greatly improves force transmission, durability, and modularity,” says Schürle-Finke, who was not involved with the study. “This moves the field toward biohybrid systems that can operate repeatably and eventually function outside the lab.”
With the new artificial tendons in place, Raman’s group is moving forward to develop other elements, such as skin-like protective casings, to enable muscle-powered robots in practical, real-world settings.
This research was supported, in part, by the U.S. Department of Defense Army Research Office, the MIT Research Support Committee, and the National Science Foundation.
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