Abstract: A method and apparatus for testing roll together of a mattress using two weights, preferably weighted cylinders, and moving one of the weights towards the other while measuring change in distance between the weights and changes in angle of the stationary weight.

Abstract: A mattress 10 that provides an edge support feature that remains firmly supportive throughout bending of the mattress on an adjustable foundation, while also providing a flat, tailored finish for the side of the mattress. The mattress has a base, an upper surface, and two side walls extending between two end walls such that the base, upper surface, side walls, and end walls define a cavity comprising a mattress support, such as a spring unit, that supports the upper surface above the base. The side walls and/or end walls comprise an edge support system having a plurality of overlapping edge segments.

Abstract: A method and apparatus for testing rolling resistance of a mattress by rolling a cylindrical weight across at least a portion of the mattress and measuring torque of the cylindrical weight moving across the mattress. The apparatus is preferably automated and preferably continuously measures torque as the cylinder is continuously moved across the mattress at a constant speed.