Quick answer: The best cooling mattress for hot sleepers is the Wright W2.15 Hybrid ($2,155 Queen). Its copper-infused 3Below gel memory foam top and active thermaphase cooling surface pull heat away from your body, and its 8-inch pocket coil base gives that heat somewhere to go. If you'd rather sleep on all-foam, the Wright W1.27 ($1,995 Queen) uses gel-infused foam, crosshatch-ventilated layers, and breathable mesh side panels to sleep far cooler than typical memory foam. Both come with a 120-night home trial, so you can judge them through real hot nights, not a five-minute showroom test.

Why do mattresses sleep hot?

Your body sheds heat all night. A mattress sleeps hot when that heat has nowhere to go.

Dense foam is the usual culprit. Traditional memory foam works by softening in response to body heat, which means it's designed to absorb warmth and hold it right against you. Pack several inches of closed, unventilated foam under a tight cover and you've built an insulator. That's why so many people love how memory foam feels in January and regret it by July.

Two things fix it: materials that conduct heat away from your skin, and airflow that carries the heat out of the mattress. A bed needs both. Conductive materials without airflow just fill up with heat more slowly. Airflow without a cool surface still feels warm where your body touches the bed.

What actually cools a mattress (and what's mostly marketing)?

When we designed our mattresses, our two-year tracked sleep study kept pointing at the same finding: breathability and temperature are among the biggest factors in how much deep sleep people actually get. So we're opinionated here.

What works:

• Gel and copper infusions in the comfort layer. Both conduct heat away from your body faster than plain foam.
• Phase-change surfaces. These absorb heat as you warm up, then release it as you cool down, smoothing out temperature swings through the night.
• Coils. A pocket coil base is mostly open air. Every time you shift, it moves air through the mattress.
• Ventilated foam and breathable panels. Channels cut into the foam and mesh sides let warm air escape instead of pooling.

What's mostly marketing: a thin "cooling cover" stretched over ten inches of dense, unventilated foam. It feels cool when you first lie down, then the heat builds anyway. If a brand talks about its cool-touch fabric but not about what's underneath, that tells you something.

Why is the W2.15 our pick for hot sleepers?

The W2.15 Hybrid stacks every one of those cooling mechanisms in a single 12-inch build:

• 1" 3Below gel-infused memory foam top, copper-infused, with an active thermaphase cooling surface. This is the layer touching you, and it's built to move heat, not store it.
• 2" of ZeroG foam (18 ILD) and 1" of denser ZeroG (20 ILD) for cushioned, responsive support.
• 8" triple-zoned, triple heat-tempered pocket coil base with reinforced edges. Roughly two-thirds of the mattress is coils and moving air.

It's medium-firm with a responsive feel, and it's the same mattress we install in hotel partners like the High Line Hotel in New York, where it has to keep a different guest comfortable every single night. Hotels hear about it fast when a bed sleeps hot.

What if I prefer all-foam?

All-foam beds start with a cooling disadvantage, so the W1.27 attacks heat everywhere we could. The 1.5-inch top layer is 3Below gel-infused memory foam with a cool-touch surface. Every foam layer is crosshatch-ventilated so air can move through the mattress instead of sitting in it. The side panels are breathable mesh, and the quilted top is built for airflow. The shell is removable and washable, which also helps: a clean cover breathes better than a grimy one.

It won't move air like a coil base, but among memory foam mattresses it's about as cool as the category gets. It took 27 prototypes to get there.

How does the W2.15 compare to other cooling mattresses?

Credit where it's due: Purple's grid is genuinely breathable and feels like nothing else on the market, and Saatva's 365-night trial is the longest in this table. Tempur-Pedic's Breeze line cools well too. You just pay roughly double our price for it, with a shorter trial and a shorter warranty. The W2.15 is the value pick here: hotel-grade cooling construction at $2,155, with the longest warranty in the group after Saatva's.

For the full story on our approach to temperature, read how Wright keeps you cool, or compare the two models head to head in W1.27 vs W2.15.

FAQ

Do hybrid mattresses really sleep cooler than all-foam?

Generally, yes. A pocket coil base is mostly air, so body heat that reaches it gets carried away rather than stored. That's why the W2.15 Hybrid is our first recommendation for hot sleepers, with the ventilated all-foam W1.27 as the alternative.

What makes the W2.15's top layer different from regular memory foam?

It's 3Below gel-infused memory foam with a copper infusion and an active thermaphase cooling surface. Gel and copper conduct heat away from your body, and the thermaphase surface absorbs and releases heat to keep the sleeping surface stable through the night.

Is the W1.27 cool enough for a hot sleeper?

For most hot sleepers who want a memory foam feel, yes. Its gel-infused cool-touch top, crosshatch-ventilated layers, and mesh side panels address the main reasons foam beds trap heat. If overheating is your number one complaint, the coil-based W2.15 is the safer pick.

What if I still sleep hot on it?

Every Wright mattress comes with a risk-free 120-night home trial. If it's not working, we refund you in full and pick the mattress up at our expense. You get an entire season of real nights to decide.

Do sheets and bedding matter for sleeping cool?

Quite a bit. A breathable percale weave helps warm air escape. Our American Cotton sheets are Supima percale for exactly that reason. Heavy, tightly woven synthetic sheets can undo a cooling mattress's work.

Try it for 120 nights

Sleeping hot is fixable. Try the W2.15 Hybrid or the W1.27 for 120 nights, risk-free, with free shipping and free in-home installation anywhere in the US and Canada. If you're not sleeping cooler, we'll pick it up and refund every dollar. Full details are on our fact sheet.