MATTRESS ASSEMBLY WITH CONVERTIBLE TOPPER

摘要

A convertible mattress including a foundation unit, a support unit and a comfort unit. The foundation unit includes several spring elements that provide flexible support for an overlying grid which defines the foundation surface. The foundation unit may be supported by a bed frame which may further include side boards, a head board and foot board. The comfort unit, or innerspring, is located atop the foundation unit and contains several interconnected spring coils or a foam core structure. The top and bottom surface of the comfort unit contain minimal covering to provide a smooth surface over the ends of the coils of the innerspring. The comfort unit is located atop the support unit and has a generally horizontal top and bottom and generally vertical sides extending between the top and bottom that defines a central space containing support and cushioning components such as foam. A series of Velcro™ straps are attached to the perimeter of the support unit that connect to Velcro™ target straps located along the perimeter of the comfort unit. The straps secure the comfort unit to the support unit and enable quick and easy removal and replacement of the comfort unit. Different comfort units may contain different materials that have varying support characteristics. The comfort unit can be either one- or two-sided.