The T10 Series Hybrid Mattress packs a lot of great features into an uncomplicated mattress, meaning you get many benefits with out the big price. Customized support is achieved with Individually Wrapped Coils, as they adjust to your every contour. A firmer and more stable edge comes from the outer layer of Encased Coils providing more surface use. Comfort foam layers, including Copper Gel Memory Foam, to provide, better circulation and pressure relief. A special Cool-to-Touch Cover keeps you cool and comfortable while you sleep. A good mattress for a back or stomach sleeper.