Abstract: A waterbed mattress having an inner frame formed with a bladder cavity encircled by an outer foam frame which covers the bladder cavity and extends downwardly to define the sides and ends of the mattress. An interlocking complementary protrusion and recess connection are interposed between the inner and outer frames to permit the peripheral portion of the outer frame and inner frames to be lifted sufficiently that bedding may be tucked thereunder. The outer frame is then lowered and the weight of the bladder is transferred by the connection to the outer frame so as to securely hold the bedding in place. The connection is releasable to permit the upper frame to be lifted off the lower frame for access to the bladder cavity.

Abstract: A fluid-filled mattress construction having an outer cover separated by a plurality of vertically extending generally I-beam shaped ribs. The ribs include a vertical web and upper and lower horizontal flaps. The mid-portion of the flaps are formed with a bead. When the walls of the cover are compressed against the ribs during the fabrication operation, the bead ensures a positive bonding of the cover walls to the rib flaps and reduces the potential degradation of or separation of the cover from the ribs.

Abstract: A fluid-filled mattress construction having an outer cover separated by a plurality of vertically extending generally I-beam shaped ribs. The ribs include a vertical web and upper and lower horizontal flaps. The mid-portion of the flaps are formed with a bead. When the walls of the cover are compressed against the ribs during the fabrication operation, the bead ensures a positive bonding of the cover walls to the rib flaps and reduces the potential degradation of or separation of the cover from the ribs.

Abstract: A wave-reducing water mattress for water beds has a wave-reducing baffle comprising a flexible fibrous layer, preferably of polyester fibers, occupying a major portion of the horizontal area traversed by the water-filled mattress. The fibrous layer resists flow of water within the mattress so as to restrict wave motion within the mattress. The baffle preferably includes a low-density layer that floats the fibrous layer next to the top surface of the water-filled mattress for restricting topical wave motion at the top surface of the mattress. In one embodiment, the baffle comprises a pair of thin vertically spaced apart upper and lower fibrous layers and a thin low-density, non-water absorptive foam layer between the fibrous layers for floating the upper fibrous layer next to the top surface of the mattress, while the lower fibrous layer "anchors" the baffle within the mattress, without the baffle being attached or sealed to the wall of the mattress.

Abstract: A water bed includes a water-filled bladder resting upon a base having a semi-flexible outer framework providing lateral support for the periphery of the bladder. The outer framework is divided into a lower wedge-shaped portion affixed to the base, and a movable wedge-shaped upper portion resting on the lower wedge and hinged to the base along the inside edge of the lower wedge. The periphery of the water-filled bladder rests against an inclined inside supporting surface provided by the upper wedge. The upper wedge pivots away from the lower wedge toward the bladder to allow access to an elongated open space extending around the outer framework between the wedges. A cushioned cover sheet overlies the bladder, and a flexible skirt extends downwardly around the periphery of the cover sheet. The skirt is fitted into the space between the upper and lower wedges.