Rest on the cool and relieving comfort of the 13" high, Superior plush hybrid mattress. Under the cool-to-the-touch surface, layers of comforting materials work together to provide pressure-relieving support all night long. HexCloud Gel Foam features unique geometric cut outs designed to help relieve pain from pressure points. The Custom Support Coil System provides exceptional support and reduced motion transfer. BestEdge Foam Encasement technology features a deep foam rail made to reduce edge roll-off and extend the sleep surface. This mattress also includes layers of PillowSoft Aire and support foam. This mattress is CertiPUR-US certified, hypoallergenic, and compatible with adjustable bases.