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. Adjustable base Friendly. 20% more of the Tempur Material than the Adapt Medium. Cooling Removable & Washable Cover. HD TEMPUR-APR® and TEMPUR-ES® Material provides superior pressure relief. TEMPUR® Support Base Foam provides long term support and motion separation.