14-inch hybrid mattress with a medium-plush feel, made to sleep cool and suit back and side sleepers. Plush CoolSync foam contours with cooling gel, while CoolSync foam coated with OmniPhase phase-change material helps regulate temperature. Zoned pocket coils add targeted support and motion control, while a HyperChill cover helps keep sleep cooler. The flexible base foam works with adjustable bases, and the CertiPUR-US certified foam arrives compressed, rolled and boxed. Covered by a 10-year warranty.