The Sealy Posturepedic Hybrid Mattress delivers a perfect combination of comfort and support with a half foam/half spring design mattress. At the surface, a layer of OptiCool™ 3-Zone Ventilated Gel Memory Foam helps reduce pressure points while regulating your sleeping temperature. Below, individually encased coils provide ultra-conforming support while minimizing motion transfer between sleep partners. This mattress also features a gel memory foam CoreSupport Center, which provides additional support in the center third of the mattress, where your body needs it most. The durable SolidEdge HD system encases the perimeter of the mattress, creating a solid sitting edge while increasing the amount of usable sleeping space.