The Fusion 12-inch memory foam mattress with cooling Swirl Gel Memory Foam adds longer lasting comfort and limited body heat transfer. High Density Support Memory Foam and Spring Pocket Coils give each individual ultimate support and sleep comfort. Memory foam reduces pressure on the body, creates a deeper level of sleep, and more relaxation. Spring Pocket Coils add classic support that conforms to each specific body shape. Exclusive design construction allows each mattress to be used with all standard foundations or adjustable bases.