The Sealy Ultimate Response Mattress is designed for Ultimate comfort, support and cooling. Individually Wrapped Coils adapt to your curves with additional NanoSupport Micro Coils in the center third of the mattress for added support. Layers of comfort foam including Copperice™ Latex Foam, for cooling, and SEALY IMMERSION™ Advanced Memory Foam for extra comfort and support. In addition to the foam layers, a full sheet of CUSTOMFLEX™ MINI COILS, accentuates the support and comfort. A moisture protecting cover draws moisture away from you so you can sleep dry and clean.