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. 

Restless sleep usually happens when your body can’t fully settle in. That can mean discomfort, painful pressure points, overheating, or constant micro-adjustments as you try to get comfortable. 
Instead of deep, uninterrupted rest, your body stays slightly “on,” leading to tossing, turning, and lighter sleep. That’s why Purple mattresses are designed to remove sleep trade-offs—so your body can relax instead of readjusting all night. Need more proof? In a recent Sleep Score study participants using a Purple Restore Hybrid Mattress noted a 93% increase in how easy they felt it was to fall asleep each night.*

The coolest 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. 
**Disclaimer: Thermal test and heat flux study conducted by Purple on Purple hybrid mattresses and leading competitor mattresses in 2023. 

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. 

The best nighttime pain relief starts with reducing pressure and supporting proper alignment—without relying on medication. When your body is evenly supported, it can relax and stay more comfortable throughout the night. 

Purple mattresses use the GelFlex Grid to cushion pressure points and adapt as you move. In a SleepScore Labs study, Purple sleepers experienced an average 63% reduction in the impact of pain on sleep*, showing how the right sleep surface can make nights feel easier. 
*Average reduction reported in the impact of pain on sleep, as measured by the Chronic Pain Sleep Inventory (CPSI), while sleeping on a Purple Restore Collection mattress, SleepScore Labs, 2025.