Sealy has always been synonymous with beds that have an orthopaedically correct design. Sealy have a rich heritage in engineering sleep systems that can boast of being firm yet incredibly comfortable.   Zero deflection spring system - Built to absorb both weight and movement, with no buckling or bulging Firm sleeping surface that will remain consistent across the entire surface of the mattress Traditional hand tufted mattress design - Locks the upholstery to the spring system and substantially reduces settlement.. Mattresses are double sided and can be turned over and rotated Sealy edge guard - A dense foam construction around the perimeter of the spring unit. The edge to edge support allows you to sleep right up to the edge of the mattress without buckling or crushing.