The Tallwood Cushion Firm Euro Top mattress set by Sealy features SealyCool fabric, SealyCool fiber with silk & wool, a layer of SealyEnvelop memory foam, that offers slower response and open cell structure for a more breathable, comfortable sleep surface, targeted NanoSupport coils that bends and flexes for a supportive and personalized feel where you need it most, the DuraFlex coil edge for improved durability, and Zoned pocketed coils to allow each coil to move independently for more targeted support and reduced motion transfer.