Abstract: A structural design and weld fabrication method for reinforced vinyl by eliminating butt seams, leaving 100% lap seams, as well as low cost, high strength internal beams for use in high quality air bed mattresses and all inflatable items.

Abstract: A modular component mattress can be easily assembled by customer with selectable and interchangeable main mattress components, such as air bladders, springs, water bladders, foam or heater is inserted into a pillow top/tight top etc cover, as well as foam rails that are inserted into a zipper fabric sleeve inside the perimeter of a mattress cover.

Abstract: A kit is provided for assembly of a mattress supporting base comprising: a frame having a top mattress supporting platform, the platform being supported by a plurality of spaced apart longitudinal stringers, each stringer having a series of longitudinally spaced apart openings, the openings being transversely aligned thus defining a series of continuous passageways through said stringers across the assembled width of the frame; a plurality of transverse beams each engagable in an associated one of said passageways; and a plurality of leg means, downwardly protruding from each of said beams.