Abstract: A box spring comprises a rectangular base frame, a wire grid, and a plurality of parallel rows of coil springs supporting the grid atop the base frame. Each row of coil springs is made from a single continuous length of wire in which adjacent coils are interconnected by an interconnecting segment of the wire. Each interconnecting segment is in the form of a generally diagonally extending bar having substantially parallel end portions interconnected at the center by an offset section, which offset section is formed by rotating the offset section relative to the parallel end portions while the end portions are restrained against rotation.

Abstract: A bedding mattress, including a spring assembly having top and bottom parallel surfaces, padding over the top and bottom surfaces, and an upholstered covering completely encasing said spring assembly and padding. The spring assembly comprises multiple parallel rows of coil springs, each row of which is formed from a single continuous length of wire with each row containing a plurality of coils interconnected by connector segments. The rows of coils are interconnected by helical springs extending parallel to the rows and alternately wound around endmost turns of coils in a pair of adjacent rows of coils. The connector segment which interconnects the coils of each row comprises a generally diagonally extending connector bar having parallel end portions connected at the center by an offset section, which offset section is formed by rotation of the offset section relative to the end portions of the connector bar while the end portions of the connector bar are restrained against rotation.