The Sealy Possession mattress allows you to sleep comfortably with help from conforming memory foam. The Edge System is a high density border that surrounds the mattress and gives you more sleeping surface. The mattress is covered by an ingenious Moisture Protect system that draws moisture away from your body. Allergen protection technology keeps you safe from common allergens. Cushion Firm mattresses have a nice comfort feel that strikes a delicate balance between firm support and soft comfort.