The Sealy Posturepedic® Plus level offers additional technology for superior support that's built to last. The advanced Posturepedic® Plus support system features our exclusive PrecisionFit™ Coils, arranged right where you need them to help maintain natural body alignment and reduce nagging bed aches. These mattresses are also surrounded by our DuraFlex Coil Edge™ that provides great support all the way to the edge of the mattress. Each of the 966 coils in the Sealy Posturepedic® Plus level (for a queen-size mattress) in individually encased to reduce motion transfer, helping you feel less movement from your partner throughout the night. Plus, Surface-Guard Technology™ kills bacteria on the surface of the mattress, protecting it from common allergens which can lead to a better night's sleep. And a MoistureProtect™ cover helps wick moisture away from your body to keep you cool and comfortable while you sleep. This mattress was designed and built in the USA and includes a 1o-year limited warranty, so you can rest easy with comfort you can count on. The 9" Sealy® StableSupport™ Foundation has been engineered to provide the ideal surface for Sealy® mattresses. The solid, flat construction ensures that your bed will maintain its comfort and support for years to come, while a high-quality navy fabric complements the overall aesthetics of every Sealy® mattress. The 9" height matches a traditional box spring and has been extensively tested for durability and are covered by a 10-year limited warranty from Sealy®.