TEMPURContour Supreme Firm Mattress, Queen 11.5-Inch thick extra-firm mattress formulated from temperature material to provide support for your body and helps distribute body weight evenly across the mattress Designed with a comfort layer made from highly conforming temperature-adapt material to determine the feel of the mattress and works to allow for personalized comfort and support The SmartClimate System helps you stay comfortable during the night to draw moisture away, while the SmartClimate treatment in the inner cover provides cool to-the-touch comfort The EasyRefresh top Cover creates an exclusive cover that zips off and on for easy washing or replacing The base layer of the mattress serves as the base for the temperature material above it, and is also designed to help disperse heat from the mattress