The innovative Hybrid design provides the best of both world: lightly-contouring comfort on top, with stable deep down support below and includes the exclusive Posturepedic Technology™. This Hybrid Premium Ultra Plush mattress set features the DuoChill™ cooling system for a cool-to-the-touch feeling, a layer of Sealy Immersion™ advanced memory foam for a more breathable and comfortable sleep surface, Sealy ComfortSense™ foam designed to respond to your body's unique shape for more comfortable night's sleep, the SealyCushion™ extra soft foam, CustomFlex™ Coil, and the DuraFlex™ coil edge system with zoned support. This mattress will bring all the support and comfort you need to get a goodnight sleep.