Experience ultimate comfort with the Sealy Posturepedic Determination II Ultra Firm Mattress. This mattress boasts a cutting-edge ComfortLoft™ Knit Cover featuring Chill™ technology and an AllergenGuard™ layer, ensuring a soothing sleep environment. The quilt showcases FlameGuard™ Fiber for added safety, accompanied by a 0.5" layer of SealyCool™ Gel Memory Foam and an additional 1.0" layer of SealyCool Gel Foam Medium, providing exquisite cushioning. Enjoy targeted support through the 0.5" SealyCool™ Gel Memory Foam Center and the 1.0" SealySupport™ Gel Foam Medium. Equipped with 1072 Coils and a DuraFlex Pro Edge, this mattress guarantees enduring quality. Elevate your sleep experience with its 12" height, promising nights of unparalleled restfulness.