Sealy's Premium Collection gives you the best of the best mattresses. Experience Luxury with Zoned Individually Wrapped Coils for maximum support. NanoSupport Coils are added for a more personalized support where needed most. Comfort layers include SealyEnvelop Memory Foam for the best in pressure relief and cushioning. Cooling effects in the cover and top layers lets you sleep cool and comfortable. DuraFlex Edge, Encased Coils that are flexible but higher density, to keep your mattress edge firm. Silk and Wool blend within the cover layer gives you that final component of pure luxury.