Tossing and turning because it's too hot to fall asleep or waking up overheated in the middle of the night can make even the most comfortable mattress a nightmare. Even if you don't consider yourself a hot sleeper, it's crucial to find a mattress that transfers enough heat away from your body to maintain a comfortable temperature. If you live in a hot climate or often find yourself waking up because of the heat, it's even more important.
Many factors, like the type of mattress and the materials it's made of, affect cooling. It's hard to predict exactly how a mattress will perform. Luckily, we've tested more than 40 mattresses using a standardized test bench, and below you'll find our picks for the top cooling mattresses. We've taken into account how well they transfer heat during the first hour after you lie down and throughout the rest of the night, but we've also considered how well the mattress performs overall. The best cooling mattresses also isolate motion well while retaining responsiveness, and they provide enough edge support so you don't feel like you might slip off.
If you're wondering about the wider mattress market, check out our picks for the best mattresses overall. Or, if you need some mattress shopping tips, see our mattress buying guide or our rundown of the different mattress types.
Quick Look
We've recently started testing mattresses. We independently purchase each unit from major retailers, just like you, to keep our reviews free from manufacturer influence. Each mattress goes through the same tests to measure objective data for characteristics like firmness, cooling, and motion isolation, so you can easily compare the results. Since we buy all our mattresses, we can tear them down layer by layer and isolate the mechanical properties of every component: quilted tops, foams, coils, and any special materials.
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Best Cooling Mattress
Energy Transferred Over 1st Hour109 kJEnergy Transferred Over 8 Hours218 kJFirmness LevelMedium-Firm (51 Pa/mm)Cooling9.7Longevity7.1Side Sleeping6.3Back Sleeping6.6See all our test resultsStomach Sleeping6.6The Purple Mattress is the best cooling mattress we've tested. It has an interesting design that works well for cooling, with support and transition layers of polyfoam topped by a layer that Purple calls the 'GelFlex Grid.' This purple, waffle-like grid collapses under pressure and quickly springs back into shape, providing a buoyant, bouncy feel that contours your body closely. This design makes a big difference when it comes to cooling. Despite its two layers of polyfoam, a material that tends to warm up easily, the airy grid layer can dissipate a lot of heat. It's especially effective at the beginning of the night, outperforming most other mattresses by a wide margin, so it's a fantastic choice if you tend to toss and turn in the heat. Its polyfoam layers are made of good-quality foam that should resist sagging for longer than lower-density foams.
This medium-firm mattress is very supportive for lighter people, so it's a good option for back and stomach sleepers in that weight category. While it's only fairly supportive for average and heavier people and isn't a good option for back/stomach sleepers, it offers better pressure relief for people in those weight categories. It's good for average and heavier side sleepers, too. Its responsive, somewhat bouncy feel helps make it easy to move around in your sleep. It offers a good motion isolation performance as well. You'll feel movements near the source, but not all over the mattress, and motion dissipates quickly, so it's less likely to wake you. However, if you want to maximize the comfortable sleeping space for you and a partner or need sturdy edges for getting in and out of bed, keep in mind that it doesn't have the best edge support.
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Best Cooling Hybrid Mattress
Energy Transferred Over 1st Hour71 kJEnergy Transferred Over 8 Hours198 kJFirmness LevelMedium (47 Pa/mm)Cooling8.9Longevity5.3Side Sleeping8.3Back Sleeping8.5See all our test resultsStomach Sleeping8.6The Casper Snow is the best mattress for hot sleepers we've tested with a hybrid design. It features a support layer of pocket coils, two memory foam comfort layers, and plenty of cooling tech. Casper advertises a cover with cooling fibers, foam with phase change materials that absorb and release heat, and 'Heat Delete Bands,' aluminum-graphite strips that the brand says help draw heat away. The resulting cooling performance is excellent. While it doesn't quite rival the Purple Mattress, it keeps you cool as you fall asleep and offers particularly efficient heat transfer throughout the rest of the night, so you don't wake up overheated, even if you sleep hot.
This model offers a softer 'Medium' firmness level and a plush upper comfort layer that offers a much more enveloping feel than the Purple, so it's a good choice if you like to sleep 'in' your mattress without feeling overheated. It's well-suited for average and lighter stomach sleepers, as it's very supportive for people in those weight categories. It's also a very good option for average and heavier side sleepers, as it'll compress easily enough to relieve pressure on your shoulder. Its excellent motion isolation makes it a good option for sleeping with a partner as well.
However, it has very low responsiveness. The memory foam upper comfort layer responds slowly to your movements, which can make you feel stuck in place. It's somewhat bouncy, which helps counteract its slow-moving feel, but still, it's not ideal if you want a mattress that feels easy to move around on. It's also not very durable, as its foam layers are made of lower-density, lower-quality foam prone to showing signs of wear sooner.
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Best Cooling Latex Mattress
Energy Transferred Over 1st Hour67 kJEnergy Transferred Over 8 Hours187 kJFirmness LevelFirm (60 Pa/mm)Cooling8.6Longevity8.3Side Sleeping7.4Back Sleeping7.6See all our test resultsStomach Sleeping7.7The best cooling mattress with latex we've tested is the Saatva Latex Hybrid. This bouncy and contouring mattress is marketed as an eco-friendly option, featuring an organic wool quilted top and a layer of aerated organic latex, which has small air channels for better airflow, above a pocket spring support system. Each of these layers contributes to the mattress's impressive cooling. The layer of pocket coils allows heat to dissipate more quickly through the support layer, aerated latex improves airflow within the comfort layer, and wool helps regulate temperature and moisture, so you don't wake up sweaty. Together, they keep you cool after you first lie down and provide even more effective cooling through the rest of the night.
This firm mattress is more supportive overall than previous picks. It's a good choice for average back and stomach sleepers, and offers enough support for heavier back sleepers as well. It's a good option for many side sleepers, although lighter people will need a plusher mattress. It provides good motion isolation, which helps you sleep peacefully with a partner. You may feel larger movements for a moment, since motion doesn't dissipate particularly quickly, but if your dog hops onto the foot of the bed late at night, you'll only feel it in that area and not around the lumbar section or head of the bed. It's a very durable mattress, too, so you can expect it to resist sagging or forming permanent indents for longer than other options. All in all, it's a solid option for lasting cooling.
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Best Cooling Mattress Under $1,000
Energy Transferred Over 1st Hour65 kJEnergy Transferred Over 8 Hours172 kJFirmness LevelFirm (62 Pa/mm)Cooling8.0See all our test resultsLongevity6.6If you're looking for a cooling mattress on a budget, the Novaform Legacy is one of the best we've tested. It features a hybrid construction, comprising a layer of pocket springs topped with a polyfoam transition layer, a memory foam comfort layer, and a quilted top with both polyfoam and fiber fill. This configuration creates a bouncy, exceptionally responsive, and highly contouring mattress, so you feel closely hugged, but it's still very easy to move around on. This mattress may not be as cooling as the above models, but it still transfers heat efficiently enough to keep hot sleepers comfortable, which is impressive considering its wallet-friendly price. It keeps you cool as you drift off and throughout the night, so you're not left tossing and turning, and you don't wake up overheated.
This firm mattress is best for lighter and average back and stomach sleepers, and may also be suitable for heavier side sleepers. While it's easy to move around on, it's also excellent at isolating motion, making it a great choice for partnered sleepers. When someone rolls over, you feel it in the lumbar area, but the motion dissipates quickly, and smaller movements can go unnoticed altogether. One downside is its sub-par edge support. When you sleep close to the sides, you feel at risk of slipping out of bed. It's not the most durable mattress, either. Most of its foam layers are dense enough to be considered good quality, but the quilted top is a weak point and may begin to form indents prematurely. Even with that in mind, however, this cooling mattress is hard to beat for budget shoppers.
Notable Mentions
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Helix Midnight Luxe 2025:
The Helix Midnight Luxe 2025 is a hybrid mattress with a medium firmness level. It delivers better responsiveness and edge support than the Casper Snow, so you feel supported instead of restricted as you change sleeping positions or get in and out of bed. However, while it's cooling enough for hot sleepers, it transfers heat more slowly than the Casper.
See our review -
Sleep On Latex Pure Green Organic:
The Sleep On Latex Pure Green Organic is an all-latex foam model with an excellent all-around performance. It's not quite as cooling as the Saatva Latex Hybrid, but it still transfers heat away efficiently enough for hot sleepers. However, it's worth noting it's a very firm mattress, so it's best suited for back and stomach sleepers who prefer a very supportive mattress.
See our review -
Nectar Premier:
The Nectar Premier is a great option if you're looking for a cooling foam mattress on a budget. It's a responsive option with excellent motion dissipation and a bit more edge support than the Novaform Legacy. It's just as cooling, but unfortunately, it's not very durable, so it's likely to start sagging sooner than mattresses made with denser foam.
See our review -
Nectar Premier Hybrid:
The Nectar Premier Hybrid is a wallet-friendly mattress with a medium firmness level. It's just as cooling as the Novaform Legacy, and it isolates motion just as well, making it a good choice for hot sleepers and partnered sleeping. Its edges are also more supportive. That said, it's a bit less durable and a bit more expensive.
See our review
FAQS
What makes a mattress cooling?
While any type of mattress can help keep you cool, hybrids are often (though not always!) the most cooling, thanks to their airy spring support layers. Foam models tend to trap more heat, and memory foam is usually the warmest, whether it's in an all-foam, hybrid, or innerspring design. These mattresses' dense structure and body-hugging feel work against its cooling performance, limiting airflow and trapping heat. To counter this, many manufacturers incorporate cooling features, such as cooling fibers or 'phase change materials' that absorb and release heat.
What materials are more cooling?
Latex foam doesn't hug the body as closely and has an open-cell structure, which makes it more breathable. You'll often find the material paired with wool, which helps regulate temperature by wicking moisture and dissipating excess heat; together, they tend to perform well in terms of cooling. While not every material will work for every sleeper, understanding how each layer affects cooling, comfort, and support can go a long way toward finding a mattress that's right for you.
All Reviews
The recommendations above are what we believe are the top cooling mattresses for most people, based on overall performance and, of course, their cooling capabilities. We also factor in the price, feedback from our visitors, and availability.
However, choosing a mattress is a personal decision, and many factors, including sleeping position, body type, and preferences, will come into play. If none of these picks are the perfect fit for you, here's a list of all our mattress reviews, sorted by cooling performance, so you can find one that's just right.