Abstract: A mattress is provided with an innerspring unit, one or more layers of foam material disposed over the innerspring unit, and a mattress cover enclosing the innerspring unit and foam layers. The innerspring unit has first and second border wires spaced apart from each other by a predetermined distance and a plurality of spring coils arranged in a plurality of rows between the border wires. Each of the coils is formed of a helical wire member having a plurality of spaced apart convolutions. A plurality of compressible support members are provided between adjacent rows of coils. The support members are generally in the shape of an I-beam, with an upper portion of a first width, a middle portion of a second width, and a lower portion of a third width. The upper portion of each support member is provided between a first two adjacent convolutions of the coil springs and the lower portion of each support member is provided between a second two adjacent convolutions of the coils.

Abstract: An internal support structure for a mattress which has a plurality of springs oriented in matrix fashion into a plurality of rows and columns, at least one outer border wire extending around the periphery of the matrix and secured to the springs located at the border or terminal rows and columns of the matrix, layers of padding or cushioning material and a fabric cover. The internal support unit comprises an inner border wire structure which is connected to the outer border wire of the mattress and to at least some of said springs. The inner border wire includes four separate wire band sections which overlap one another in a grid pattern and form a closed inner border loop. The ends of each band section are connected to the outer border wire. The inner border wire and outer border wire are concentric and located in the same horizontal plane.

Abstract: A resilient foundation assembly for furniture expecially a box spring for supporting a mattress. A frame means which defines a generally planar foundation area, a grid means overlaying and spaced in a plane above and generally parallel to the foundation area plane and a plurality of spring units resiliently connected between the frame means and grid means. The spring units are formed of a single length of wire and comprise two end segments and a plurality of dual counter reaction modular coil springs contiguous therebetween. Each dual counter reaction spring comprises two leg sections extending downwardly from the grid plane toward the planar foundation area formed by the frame means, the two leg sections are joined by a bridging segment of wire lying in the grid plane. Each leg section is formed by linear segments of wire positioned in predetermined angular relationships and joined by a coil section of wire.