Abstract: A mattress foundation is provided that may be compactly and thus inexpensively shipped in kit form and easily assembled into a full sized foundation for use under a mattress by the user. The foundation is light weight and comprises a plurality of rails, end caps, fasteners, interlacing rigid deck panels, and a cover. A top “decking is applied with a plurality of panels that form junctures that present a snaking configuration. Removable fasteners connect the decking to the framework and secure the framework together for easy disassembly. The cover is sheet material with a fully expanded shape conforming to the shape of the frame of the foundation utilizes zippers, Velcro and/or other fasteners to enclose the framework and decking.