Sleep Inc. Premier Coil Mattress: * 475 independently wrapped coils * 3/8" quilted cover * Provides proper spinal alignment * Springs work independently * 1" of high-density comfort foam * Foam encased for extra support * 1-year full, 5-year prorated warranty * Mattress depth: 8" * Beds sold separately. See our assortment of beds. * Bed frames sold separately. See our assortment of bed frames.