The Sealy Posturepedic Determination Pillow Top Mattress features a ComfortLoft™ Knit Cover with Chill™ and AllergenGuard™ cover. The quilt is constructed of FlameGuard™ Fiber, has a 0.5" SealyCool™ Gel Memory Foam and a 1.5" x 0.5" SealyCool Gel Foam Medium layer. The targeted support is 0.5" SealyCool™ Gel Memory Foam Center and 1.5" SealySupport™ Gel Foam Medium. There is a 2.0" SealyCool Gel Foam Soft layer. There are 1072 Coils built with a DuraFlex Pro Edge. Mattress height is 14".