Choose from available size options. Ultra-plush hybrid memory foam, coil mattress. 14.5-in. thick profile. Half cooling gel memory foam, half metal coil springs. SolidEdge HD border. Quilted knit fabric cover. Requires foundation or box springs. You get the best of both worlds with the Sealy Posturepedic Premiere Hybrid Silver Ultra Plush Mattress. It offers both body-conforming, cool gel memory foam and premier metal coils. This ultra-plush mattress is 14.5 inches thick with a comfortably quilted fabric cover. Inside is the body-conforming, cooling gel memory foam topping a zoned Sealy embrace premier coils for support. To maximize the usable surface of your bed and get a solid edge for sitting, this mattress boasts a three-inch SolidEdge HD premier border. It's offered in your choice of available size options. Size: California King,Full,King,Queen.