The Sealy Posturepedic Testimony II Plush Mattress features a ComfortLoft™ Knit Cover with Chill™ and AllergenGuard™ cover. The quilt is constructed of FlameGuard™ Fiber and has a 2.0 x 0.5" SealyCool™ Air Gel Foam layer. The targeted support is 0.5" SealyCool™ Gel Memory Foam Center and 1.5" SealySupport™ Gel Foam Medium. There are 911 Coils built with a DuraFlex Edge. Mattress height is 13".