The Copper II Firm Hybrid Performance mattress offers excellent comfort for stomach and back sleepers. Built with Zoned support in the center that increases coils by 20 percent. Moisture Protect provides a cover fabric that draws moisture away from the body during sleep to maintain comfort during the night. Chill offers cool-to-the-touch technology is keeping the sleep environment fresh for sleeping. Sealy Immersion Advanced Memory Foam is a conforming memory foam and gel that adds extra support to the mattress. DuraFlex Coil Edge System allows the mattress to have more usable sleeping surface by adding flexible coil to the border surrounding the mattress. The Copper II mattress is also suitable to be used with an adjustable base.