Abstract: An insert adapted to be inserted between a foundation of a bed and a mattress of the bed. The insert includes a frame having a first side rail and a second side rail spaced apart from the first side rail. A plurality of elongate upper slats extend between the first side rail and the second side rail of the frame at a first level with respect to the frame and are spaced apart from one another. A plurality of elongate lower slats extend between the first side rail and the second side rail of the frame at a second level located below the first level of the upper slats. Each lower slat is located below a gap formed between a pair of adjacent upper slats. A mounting member resiliently supports the ends of two adjacent upper slats and rigidly supports the end of a lower slat that is located below the gap formed between the two adjacent upper slats, whereby the firmness of a mattress overlying the insert can be selectively adjusted.

Abstract: An all truss foundation unit, method of making the foundation unit, and a foundation unit kit. The foundation unit is formed of multiple cross trusses interconnected by bridging top and bottom side rails. This results in a flat surface on both the top and the bottom of the foundation unit. The kit is formed of a plurality of the trusses and four side rails, with the trusses and side rails being oriented together with their longitudinal dimensions aligned in a generally parallel orientation and with at least some of their flat sides in contact with one another. When the foundation unit is constructed, a truss locator guide is provided on at least two of the side rails, and the cross trusses are oriented in a parallel, spaced relationship in accordance with the truss locator guide.

Abstract: An all truss foundation unit, method of making the foundation unit, and a foundation unit kit. The foundation unit is formed of multiple cross trusses interconnected by bridging top and bottom side rails. This results in a flat surface on both the top and the bottom of the foundation unit. The kit is formed of a plurality of the trusses and four side rails, with the trusses and side rails being oriented together with their longitudinal dimensions aligned in a generally parallel orientation and with at least some of their flat sides in contact with one another. When the foundation unit is constructed, a truss locator guide is provided on at least two of the side rails, and the cross trusses are oriented in a parallel, spaced relationship in accordance with the truss locator guide.

Abstract: A spring wire support for foundations and innerspring mattresses, and a variable spring surface deck for a foundation and variable spring surface for a mattress. The spring wire support comprises an elongated spring element enveloped in a pliant carrier, with the carrier including an attachment margin. The variable spring surface deck for a foundation comprises a plurality of the spring wire supports secured as desired to an upper surface of a foundation. The variable spring surface for a mattress comprises a plurality of the spring wire supports located between top and adjacent convolutions of rows or columns of springs of the mattress.

Abstract: A compact foundation unit kit and a method of making a foundation unit from the kit. The kit comprises at least three elongated, generally flat truss rails, four generally flat end caps and a plurality of generally flat cross slats, with the truss rails, end caps and cross slats oriented together with their longitudinal dimensions aligned in a generally parallel orientation and with their flat sides in contact. A binding maintains the truss rails, end caps and cross slats in that orientation. The method includes providing the kit, opening the kit and orienting the truss rails in a parallel, spaced position, then affixing one of the end caps to each end of the truss rails, inverting the partially formed foundation, and affixing the last two end caps to opposite ends of the truss rails, then finally affixing the cross slats to the truss rails in a spaced, parallel orientation. The foundation can then be finished in a conventional fashion.

Abstract: A compact foundation unit kit and a method of making a foundation unit from the kit. The kit comprises at least three elongated, generally flat truss rails, four generally flat end caps and a plurality of generally flat cross slats, with the truss rails, end caps and cross slats oriented together with their longitudinal dimensions aligned in a generally parallel orientation and with their flat sides in contact. A binding maintains the truss rails, end caps and cross slats in that orientation. The method includes providing the kit, opening the kit and orienting the truss rails in a parallel, spaced position, then affixing one of the end caps to each end of the truss rails, inverting the partially formed foundation, and affixing the last two end caps to opposite ends of the truss rails, then finally affixing the cross slats to the truss rails in a spaced, parallel orientation. The foundation can then be finished in a conventional fashion.

Abstract: A compact foundation unit kit and a method of making a foundation unit from the kit. The kit comprises at least three elongated, generally flat truss rails, four generally flat end caps and a plurality of generally flat cross slats, with the truss rails, end caps and cross slats oriented together with their longitudinal dimensions aligned in a generally parallel orientation and with their flat sides in contact. A binding maintains the truss rails, end caps and cross slats in that orientation. The method includes providing the kit, opening the kit and orienting the truss rails in a parallel, spaced position, then affixing one of the end caps to each end of the truss rails, inverting the partially formed foundation, and affixing the last two end caps to opposite ends of the truss rails, then finally affixing the cross slats to the truss rails in a spaced, parallel orientation. The foundation can then be finished in a conventional fashion.