The Fusion Pocket Mattress is a luxurious hybrid design courtesy of Great British mattress maker Komfi, combining innovative 4G Aircool Memory Foam and traditional pocket spring support. The top layer of this durable triple-layer mattress is made from soothing 4G Aircool Memory Foam which releases a cooling sensation when pressure is applied. Below, you’ll find a layer of HD memory foam and 1500 individual pocket springs encapsulated in foam. This pocket spring memory foam mattress provides the ultimate support and comfort, combining the forces of memory foam and individual pocket springs. The final flourish of the Fusion Pocket Mattress is a memory foam-infused cover top, which can be quickly zipped off and washed at 40 degrees for a fresh, clean sleep.