Sealy Corporation, through its subsidiaries, is the largest bedding manufacturer in North America and produces a diversified line of mattress and foundation products. Sealy's conventional bedding products (mattresses and foundations) include the Sealy, Sealy Posturepedic and Sealy Posturepedic Luxury Collection. Sealy, as distinguished from most of its competitors, also manufactures many of the important component parts that are used inside the mattress. Sealy owns and operates a component-manuf ...