The Sealy Conform Performance Collection is an all foam mattress featuring Gel Memory Foam. The Memory Foam conforms to your body filling every curve and keeping your body aligned for maximum support. With Gel Memory Foam you'll feel the support and pressure relief. Added features like a moister wicking cover and PCM (phase change material), help dissipate heat and move it away from your body letting you sleep cooler. See how Sealy uses the latest technology to help you sleep better, longer.