The Sealy Posturepedic Hybrid Premium Silver Chill Plush Mattress boasts a comfort rating of six, perfectly designed for side and back sleepers. This plush mattress offers impressive sleeping technology, including a Sealy Response Pro Zoned HD Encased Coil System, a DuraFlex Edge Encasement system, Sealy Immersion Advanced Memory Foam, Sealy ComfortSense Foam, and DuoChill Technology.