This mattress is the most premium hybrid that Sealy has to offer, with targeted support from high-density encased coils and the highest quality cooling and pressure relieving memory foam. The SealyCool™ gel foam promotes a cooling environment and helps cushion, delivering comfort and support with a firm feel. Densely packed fabric encased coils and premium memory foam provide pressure relieving comfort and reduced motion transfer from your partner for a better night’s rest. The DURAFLEX™ pro coil edge system consists of densely packed coils surround the edge of this mattress for added durability, more sleeping area, a solid seating surface and better flexibility when paired with an adjustable base.