The best cooling mattress for hot sleepers

Purple mattresses stay cool because they’re built around the GelFlex Grid—an open, breathable structure designed to let air flow freely where your body meets the bed. 

Unlike traditional foam mattresses that can trap heat, the GelFlex Grid allows warm air to move away instead of building around you. As you shift and settle throughout the night, the GelFlex Grid flexes with you while keeping airflow consistent, helping your sleep surface feel cooler and more comfortable. 

Cooling mattresses work best when cooling is engineered into the mattress itself, not just added on the surface. Many mattresses rely only on cooling covers or infused foams that may feel cool at first but can still trap heat over time. 

Purple takes a different approach. Every Restore Hybrid mattress combines the breathable GelFlex Grid with responsive coils to promote airflow and help heat move away from your body. This design allows sleepers to sleep up to 4x cooler*—creating a more consistently cool and comfortable sleep experience throughout the night. 

The best cooling mattress for hot sleepers is one that doesn’t trap heat in the first place. Instead of surrounding your body with dense foam, it allows heat to move away, so your sleep surface stays cooler and more comfortable. 

Purple mattresses are built with the GelFlex Grid, an open, breathable design that lets air flow freely across the entire sleep surface. By allowing heat to dissipate rather than build up, the GelFlex Grid helps create a cooler-feeling bed that stays comfortable throughout the night. 

Specifically, the RestorePremier Hybrid mattress is Purple’s coolest mattress for hot sleepers. It sleeps 4x cooler* than the competition with 100% free airflow between CoolFlex Coils and 3” deep GelFlex Grid. 

The best cooling mattress for hot sleepers who prefer side sleeping must offer both temperature regulation and targeted pressure relief. Traditional foam beds often contour to your body but trap intense heat in the process. Purple’s Restore Hybrid and Rejuvenate Luxe collections feature the GelFlex Grid, which instantly cradles the hips and shoulders to align the spine while utilizing 1,400+ open-air channels to keep you sweat-free all night.

Traditional memory foam is notorious for trapping body heat because of its dense, closed-cell structure. Even foam labeled as a "gel cooling mattress" can eventually warm up and cause night sweats. Purple eliminates this issue entirely by replacing heavy foam layers with our hyper-elastic polymer GelFlex Grid. Because the Grid is configured with open air channels, it is fundamentally incapable of retaining heat, making it the best mattress for hot sleepers looking for consistent, all-night temperature balance.

A high-quality cooling mattress shouldn’t make you shiver; rather, it should promote optimal temperature regulation. The GelFlex Grid inside Purple mattresses stays completely temperature-neutral. It prevents the buildup of excess body heat without artificially chilling your environment, ensuring your body finds its perfect, undisturbed sleep temperature all year round.

Yes, just follow the guide on our FSA/HSA page— confirm your eligibility, then simply select Truemed as your payment option at checkout and use your FSA or HSA card as you would any other credit card. Thanks to Purple’s innovative technology, many of our bestselling products are FSA/HSA eligible — including pain-reducing mattresses, adjustable smart bases, cooling + ergonomic pillows, and seat cushions. 

Purple partnered with SleepScore Labs, the world’s only sleep research organization, to quantify our patented sleep technology’s impact on sleep. Using validated, non-invasive technology, SleepScore Labs verified the GelFlex Grid’s ability to provide easier, better, transformative sleep.