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Night Sweats, Be Gone! Here Are the Best WIRED-Tested Cooling Mattresses

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Night Sweats, Be Gone! Here Are the Best WIRED-Tested Cooling Mattresses


Honorable Mentions

There are a ton of mattresses and related items on the market that claim to have cooling benefits. Here are a few others we tested and liked, but not as much as the options above.

BedJet 3 for $427: WIRED reviewer Christopher Null liked this climate-control device a lot because it allowed him to sleep cool without having to buy a whole new mattress. This device uses a large blower under your bed to blast hot or cool air beneath your covers. If you like your existing mattress but find yourself sleeping hot, this could be just the ticket.

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Courtesy of Sealy

Sealy Cocoon Chill Memory Foam Mattress for $919: Its surface is noticeably cool to the touch thanks to its exclusive phase change material, which works wonders at drawing and storing the body’s heat. This all-foam mattress leans firm, making it well-suited for back and stomach sleepers. If you’re a side sleeper looking for more body contouring, I’d suggest looking elsewhere. If you’re a stomach sleeper looking for a firm mattress that’s also cooling, this one will do the trick. There was almost no motion transfer in my testing, allowing my husband and me to get up at different times without disturbing each other. —Nicole Kinning

Casper Snow Hybrid for $2,595: When you come across a mattress with a name that includes “snow,” your expectations for cooling effects are naturally high—and this mattress indeed lives up to that expectation. Structurally, this hybrid bed combines poly foam, memory foam, and pocketed coils, and provides targeted support at the hips, waist, and lower back to alleviate pressure, making it ideal for back and stomach sleepers. I noticed it came out of the box slightly misshapen from its packaging and emitted a faint plasticky scent. After about two days, the mattress was ready to go, the smell gone, and it had settled into its intended neat rectangle shape. —Nicole Kinning

Saatva Memory Foam Hybrid for $2,049: The Saatva Memory Foam Hybrid is marketed as firm, and that’s exactly what you should expect. Crafted with patented AirCradle memory foam, the mattress features concentrated cushioning in the center, strategically intended to support your lower back. Since I’m only 5’2,” the middle-back cushioning didn’t hit where it was intended to. Despite its firmness, I didn’t find this mattress particularly exceptional, especially with its cooling properties. Despite incorporating a triple-phase LuxeCool system and cooling gel-infused memory foam, the cooling effect didn’t stand out. —Nicole Kinning

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Courtesy of Wayfair

Wayfair Sleep 12-Inch Medium Cooling Gel Memory Foam Mattress for $500: This bed has four layers of hypoallergenic gel memory foam infused with green tea, using cooling technology and a breathable design to ensure you’re having a super-cool sleep. This medium-plush bed has two top layers of gel-infused memory and comfort foam to help with breathability and cooling, and the top material is a breathable knitted cover to aid in airflow circulation. This mattress had the perfect balance of soft cooling with the memory foam, and the breathable knitted cover also helped with airflow. Most importantly, though, I always slept coolly on this sleeper hit (pun intended).

Wayfair 10.5-Inch Plush Cooling Gel Mattress for $536 (King): This cooling gel hybrid mattress comprises five layers of various memory foams. The memory foam pillow top aims to relieve pressure points and help reduce motion transfer, and it has a breathable knit cover to aid in the cooling effect. The mattress is compatible with an adjustable base and has a 100-night trial and 10-year warranty. Although it doesn’t have as noticeable a cooling effect as some others on this list, it’s a true plush mattress that uses cooling gel technology at an affordable price.

Wayfair Sleep 8-Inch Medium Cooling Gel Memory Foam for $400: This super-cheap medium-firm cooling mattress has eight total inches of memory foam—the top layer of cooling gel, charcoal, and green tea-infused memory foams (to aid in freshness and odor absorption), followed by a soft comfort foam on a durable high-density foam base. The top layer has a breathable, woven jacquard design that helps to keep the sleeper cool and reduces motion transfer. The layers of ultra-cooling gel and green tea-infused memory foams help with the cooling effect and keep any odors at bay. This super-inexpensive mattress delivers well above expectations, but there are better cooling options on our list.

Wayfair Sleep 14-Inch Plush Cooling Gel Hybrid Mattress for $326 (Full): This plush cooling gel mattress features a top plush layer of gel memory foam to relieve pressure and help with airflow, plus the quilted Euro-top knit cover and sides promote continuous airflow around the mattress to keep the sleeper cool. The bed also features classic pocket coils below for structure and support, with layers of memory foams surrounding the coils (this helps with low-motion transfer, too). The mattress is also compatible with an adjustable bed base, has solid edge support, offers a 100-night trial, and has a 10-year warranty. I love a plush mattress, but it may be too plush for someone with a bigger body, since the first super-soft memory foam layer is on top of a coil system.

Wayfair Sleep 13.5-Inch Medium Cooling Gel Memory Foam Mattress for $550: This 13.5-inch cooling gel memory foam mattress is listed as medium, but I’d definitely consider it super-plush. The top layer has 2 inches of gel-infused memory foam and 4.5 inches of comfort foam, and the bottom layer is 7 inches of high-density base support foam. Like other cooling Wayfair mattresses, the top has a breathable jacquard pattern and is green tea-infused to help with freshness and cooling. The top layers of memory foam are designed to mold to your body and help relieve pains and achy joints. This in-a-box bed also has low-motion transfer, a 100-night trial, and a limited 10-year warranty. If you’re someone who wants a super-plush bed that helps to wick moisture, then I’d recommend this behemoth.

Compare the Best Cooling Mattresses

How Does WIRED Test Cooling Mattresses?

Mattresses are tested for at least a week, but in many cases for longer. I slept on the majority of these mattresses for half a month or more to really get a feel for the product. I tested them at different times of the season and with different types of sheets and bedding. I sat on the edges to test for edge support, jumped, and performed some other methods to test the bounce and motion transfer of the mattress. Perhaps most important for this guide, I was my normal, perpetually warm (and sweaty) self, and gauged more abstract things like my overall comfort at night, and how well I thought air flowed through the mattress, or how much heat was trapped in.

What Should You Look for in a Cooling Mattress?

When shopping for a cooling mattress, here are a few things to consider:

  • Composition: Opt for mattress materials designed to promote airflow, which will help prevent heat buildup. Many mattresses are infused with gel or copper, which are designed to dissipate heat and keep you cool. A hybrid mattress combines the best of both worlds by using a coil support system under a foam, latex, or polyfoam comfort top. Hybrid mattresses tend to retain less heat than all-foam mattresses because they have a layer or two of springs to help dissipate heat.
  • Cover fabric: Consider mattresses with covers made from moisture-wicking fabrics and phase-change fibers to draw sweat away from the body. Breathable fabrics include bamboo, Tencel lyocell, and synthetic fabrics, which are engineered to help regulate body temperature. Perforated cooling covers further amplify airflow between your body and the fabric. We find quilted tops help too, since they have ridges and valleys that allow air to escape.
  • Airflow: With proper airflow, the heat you generate overnight is properly conducted through the mattress. Hybrid mattresses with individual coils help with this, but many mattresses marketed for their cooling benefits have other tricks.
  • Firmness: While the debate of soft versus firm mattresses is a personal preference, your choice can play a crucial role in the way your body traps heat. Softer mattresses tend to envelop your body, leading to increased heat retention as your body sinks into the surface. Conversely, firmer mattresses provide better support and allow for more air circulation around your body.

How Did WIRED Select Models to Be Reviewed?

We have tested over 100 mattresses across all of our guides, like Best Organic Mattresses, Best Mattresses for Back Pain, and Best Mattresses You Can Buy Online, as well as for individual review. We talk with each other, discussing which mattress brands in general we’re fans of, and which we aren’t. Some mattresses are provided as review samples by the manufacturers, with the understanding that we don’t guarantee coverage or type of coverage—we aren’t paid for glowing reviews on products we think are just mid. We purchase and expense models we aren’t able to get a sample of.

We try to test a range of mattress types, firmness, and brands to ensure we know what’s out on the market, so we can best give you our honest, unbiased opinion on which mattresses you should spend your money (and one-third of your life sleeping) on.

What Does WIRED Do With Mattresses After Testing?

We keep top picks for longer-term durability testing in our own homes and the homes of other staffers, friends, and family members, while other models are donated locally.

Power up with unlimited access to WIRED. Get best-in-class reporting and exclusive subscriber content that’s too important to ignore. Subscribe Today.



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Barkbox Offers: Themed Dog Toys, All-Natural Treats, and Subscription Deals

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Barkbox Offers: Themed Dog Toys, All-Natural Treats, and Subscription Deals


As my fellow pet parents will know, it’s amazing how quickly even the tiniest of dogs can demolish their toys and treat stash. We love and spoil them nonetheless. When you subscribe to BarkBox a fresh batch of cleverly themed treats and toys arrives at your doorstep. The costs of pet ownership can stack up quickly, especially if you’re buying your pooch a random gift box that goes well beyond the essentials. That’s why we have Barkbox promo codes and discount options ready to go for you.

Barkbox Promo: Enjoy a Free Toy for a Year at Barkbox

When your monthly Barkbox arrives, it’s like Christmas morning for your dogs. I watch as my two dogs, Rosi and Randy, shake their little Chihuahua mix bodies with barely restrained excitement. They’re never gentle on their toys but the stimulation that comes from textures and chewing is good for their little brains. With Barkbox you get a steady supply of two unique toys and two bags of all-natural treats every month. If you want to see how your dogs react, this Barkbox coupon is good for new Barkbox subscription customers and adds an additional toy in your box every month for a year.

Save 50% on Your First Barkbox Food Subscription With a Barkbox Coupon Code

Another reason why Barkbox is the best dog subscription box is how easy the company makes it to keep your pantry stocked with your dog’s food. Use this Barkbox coupon to save 50% off your first Barkbox food subscription, so you won’t have to end up running out to the grocery store in the middle of the night when your scooper scrapes across the bottom of an empty kibble bin.

Fly Travel Stress-Free With Your Dog and Get $300 Off BARK Air Flights

If you live in a Barkbox flight hub destination, please know I am insanely jealous of you. It’s no secret that flying is stressful and can be very dangerous for pets, especially if they have to ride in a cargo hold. Barkbox makes them the VIP with BARK Air, letting them ride in the cabin with you and get doted on, so things are a lot less scary. This is another perk of having a BarkBox subscription, with the opportunity to save $300 off BARK Air Flights.

Support Your Dog’s Dental Health and Get $10 Off With a Barkbox Coupon

Dental health is crucial for dogs, as it can prevent disease not just in their mouths, but their vital organs. Don’t forget to schedule your yearly cleaning with your vet, but in the meantime, use this BarkBox discount code to get $10 off a special BarkBox Dental kit.

Get an Extra Premium Toy in Every BarkBox With the Extra Toy Club

For having such tiny mouths, my dogs can gnaw through toys with surprising speed. If you’re also buried in a pile of shredded fluff and squeakers from disemboweled toys, the Extra Toy Club can help. This subscription includes dog toys for aggressive chewers of all ages, breeds, and sizes, offering extra durable toys meant to last longer. So far, so good at my house. To upgrade to this subscription box, it’s an extra $9 per month.

Get Exclusive BarkBox Discounts: Join the Email List

If you assume that the punchy branding and witty lingo extend to Barkbox’s email subscribers and not just the box subscription, you’d be correct. As a bonus, you can get exclusive BarkBox discount codes when you sign up to receive these emails. Who also doesn’t love a furry face and reminder of their pet in between work subject lines and bill payment reminders, too?



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Here’s Why Trump Posted About Iran ‘Stealing’ the 2020 Election Hours After the US Attacked

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Here’s Why Trump Posted About Iran ‘Stealing’ the 2020 Election Hours After the US Attacked


At 2:30 am Eastern time on Saturday, President Donald Trump posted a video to his Truth Social account announcing that the US had joined Israel in launching attacks on Iran.

His next post, just two hours later, appeared to suggest that the attacks were, at least in part, motivated by a wild claim that Iran had helped rig the 2020 US elections. “Iran tried to interfere in 2020, 2024 elections to stop Trump, and now faces renewed war with United States,” the president wrote on Truth Social.

The post linked to an article on Just the News, a conspiracy-filled, pro-Trump outlet that offered no explanation for its claim beyond the vague assertion that Iran operated “a sophisticated election influence effort” in 2020.

The White House did not respond to a request for comment on whether the alleged interference factored into the decision to attack Iran or what exactly the so-called interference amounted to.

Trump has spent the years since 2020 boosting numerous baseless conspiracy theories about the 2020 election being rigged. Since his return to the White House last year, he has empowered his administration to use those debunked conspiracy theories to inform decisionmaking, from election office raids in Fulton County, Georgia, to lawsuits over unredacted voter rolls.

It’s not exactly clear what supposed Iranian interference Trump was alluding to in his Truth Social post, but Patrick Byrne, a prominent conspiracy theorist who urged Trump to seize voting machines in the wake of the 2020 election, claims to WIRED that it is related to a broader conspiracy theory that also involves Venezuela and China.

Like most election-related conspiracy theories, this one is convoluted and based on no concrete evidence. In broad terms, the conspiracy theory, which first emerged in the weeks and months after the 2020 election and has grown more complex in the years since, claims that the Venezuelan government has been rigging elections across the globe for decades by creating the voting software company Smartmatic as a vehicle to remotely rig elections. (Smartmatic has repeatedly denied all allegations against it and successfully sued right-wing outlet Newsmax for promoting conspiracy theories and defaming the company.)

Byrne laid out the entire conspiracy theory in a 45-minute-long presentation posted to X in 2024. His claims have been widely shared within the election-denial community since it was posted.

Iran’s role in all of this, claims Byrne, was to hide the money trail. “They act as paymasters. They keep certain payments that would reveal this [operation] out of the banking system, out of the Swift system so you can’t see it,” claimed Byrne during this presentation “It’s done through a transfer pricing mechanism run through Iran in oil.”

When asked for evidence of Iran’s role in this conspiracy theory, Byrne did not respond. In fact, none of Byrne’s claims have ever been verified, and most have been repeatedly debunked. Smartmatic did not immediately respond to a request to comment.

There have been two actual documented instances of Iranian election interference, however: In 2021, the Justice Department charged two Iranians for conducting an influence operation designed to target and threaten US voters. And in 2024, the three Iranian hackers working for the government were charged with compromising the Trump campaign as part of an effort to disrupt the 2024 election.

Byrne’s allegations, however, have been wholly different. And while Byrne’s claims have been circulating among online conspiracy groups for years, they have been emailed directly to Trump in recent months by Peter Ticktin, a lawyer who has known Trump since they attended the New York Military Academy together. Ticktin also represents former Colorado election official turned election denial superstar Tina Peters.



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A Possible US Government iPhone-Hacking Toolkit Is Now in the Hands of Foreign Spies and Criminals

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A Possible US Government iPhone-Hacking Toolkit Is Now in the Hands of Foreign Spies and Criminals


Google notes that Apple patched vulnerabilities used by Coruna in the latest versions of its mobile operating system, iOS 26, so its exploitation techniques are only confirmed to work against iOS 13 through 17.2.1. It targets vulnerabilities in Apple’s Webkit framework for browsers, so Safari users on those older versions of iOS would be vulnerable, but there’s no confirmed techniques in the toolkit for targeting Chrome users. Google also notes that Coruna checks if an iOS devices has Apple’s most stringent security setting, known as Lockdown Mode, enabled, and doesn’t attempt to hack it if so.

Despite those limitations, iVerify says Coruna likely infected tens of thousands of phones. The company consulted with a partner that has access to network traffic and counted visits to a command-and-control server for the cybercriminal version of Coruna infecting Chinese-language websites. The volume of those connections suggest, iVerify says, that roughly 42,000devices may have already been hacked with the toolkit in the for-profit campaign alone.

Just how many other victims Coruna may have hit, including Ukrainians who visited websites infected with the code by the suspected Russian espionage operation, remains unclear. Google declined to comment beyond its published report. Apple did not immediately provide comment on Google or iVerify’s findings.

In iVerify’s analysis of the cybercriminal version of Coruna—it didn’t have access to any of the earlier versions—the company found that the code appeared to have been altered to plant malware on target devices designed to drain cryptocurrency from crypto wallets as well as steal photos and, in some cases, emails. Those additions, however, were “poorly written” compared to the underlying Coruna toolkit, according to iVerify chief product officer Spencer Parker, which he found to be impressively polished and modular.

“My god, these things are very professionally written,” Parker says of the exploits included in Coruna, suggesting that the cruder malware was added by the cybercriminals who later obtained that code.

As for the clues that suggest Coruna’s origins as a US government toolkit, iVerify’s Cole notes that it’s possible that Coruna’s code overlap with the Operation Triangulation code that Russia pinned on US hackers could be based on Triangulation’s components being picked up and repurposed after they were discovered. But Cole argues that’s unlikely. Many components of Coruna have never been seen before, he points out, and the whole toolkit appears to have been created by a “single author,” as he puts it.

“The framework holds together very well,” says Cole, who previously worked at the NSA, but notes that he’s been out of the government for more than a decade and isn’t basing any findings on his own outdated knowledge of US hacking tools. “It looks like it was written as a whole. It doesn’t look like it was pieced together.”

If Coruna is, in fact, a US hacking toolkit gone rogue, just how it got into foreign and criminal hands remains a mystery. But Cole points to the industry of brokers that may pay tens of millions of dollars for zero-day hacking techniques that they can resell for espionage, cybercrime, or cyberwar. Notably, Peter Williams, an executive of US government contractor Trenchant, was sentenced this month to seven years in prison for selling hacking tools to the Russian zero-day broker Operation Zero from 2022 to 2025. Williams’ sentencing memo notes that Trenchant sold hacking tools to the US intelligence community as well as others in the “Five Eyes” group of English-speaking governments—the US, UK, Australia, Canada and New Zealand—though it’s not clear what specific tools he sold or what devices they targeted.

“These zero-day and exploit brokers tend to be unscrupulous,” says Cole. “They sell to the highest bidder and they double dip. Many don’t have exclusivity arrangements. That’s very likely what happened here.”

“One of these tools ended up in the hands of a non-Western exploit broker, and they sold it to whoever was willing to pay,” Cole concludes. “The genie is out of the bottle.”



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