Sealy Posturepedic Proback Extra Firm King Pillowtop Mattress for Sale Extra Firm Comfort Luxurious cashmere fabric is prized for its soft, yet strong fibres, that is fit for even the most demanding consumer. SmartGel Memory Foam is the latest innovation in gel memory foam that is designed to respond to your body's unique shape for a more comfortable night's sleep. Gel HD CertiPUR-US cushioning gel foam that's pre-compressed for consistent, long-lasting comfort and support. Dual StayCool Technology is a two-part fabric system that helps to control your climate by pro-actively regulating your body temperature and keeping you dry to promote a comfortable sleeping environment. VentiCore System is the thick rails that surrounds the innerspring for a more durable seating edge and increased sleep surface finished with a Sealy A/C base layer to help with core climate control. Pocket Coils are encased to allow each coil to move independently, for more targeted support and reduced motion transfer. 250-714-3890