This isn’t ordinary memory foam. Each TEMPUR-Adapt® mattress features unique layers of proprietary material originally developed by NASA that work together to support your body and relieve pressure. TEMPUR-ES® & Ultra HD TEMPUR-APR+™ Material provide an extra soft top and high density pressure relieving foams. Smart Climate Dual Cover System gives an immediate cool to the touch feeling that lasts. TEMPUR® Support Base Foam gives you a long lasting support and motion separation.