The Standale II Luxury Firm mattress by Serta Perfect Sleeper features a CoolFeel™ fabric for an instant cool-to-the-touch sensation, a layer of CoolTwist® gel memory foam to help enhance airflow and heat dissipation for a cool, contouring type of comfort, HyperTouch™ comfort for total body cradling and better pressure point relief, and the CustomSupport® coil system to deliver unparalleled support and less motion transfer that works together with the ExcelEdge™ Elite that provide maximum side support and roll-off prevention.