Experience the best of Beautyrest with the Black Series One 14.25"" Firm Pillowtop Mattress featuring advanced temperature management technology, premium foams, and advanced, Triple-Stranded Pocketed Coil Technology for conforming support and motion separation. With the inclusion of premier materials and advanced sleep technology, the Beautyrest Black Collection optimally aligns at the intersection of luxury and innovation for an extraordinarily comfortable sleep.