SEALY POSTUREPEDIC CUSHION FIRM TW SETbr br Featurebr * Mattress Height: 9.5" br * Posturepedic Classic Coil br * SolidEdgeTM br * StayTightTM Foundationbr Sealy Posturepedic Classic Series Cushion Firm features twice tempered titanium alloy coils providing unsurpassed comfort and support. All foams are pre-compressed with Posturepedic's ActiveFlexTM process, making the foams more durable.