Sealy Posturpeidc covers are made with premium-quality fabric , with climate treatments designed to deliver cooling comfort. On top, we use layers of foam for comfort you can feel . Underneath, our specially engineered Sealy Embrace encased coil responds to the natural curves and alignment of your spine, for full-body support. Encasing helps to reduce motion transfer that can wake you when your partner moves . Gel memory foam is used for additional support/durability.