Cavitated pad and innerspring assembly combination having springs with free terminal convolutions

A cavitated pad and innerspring assembly combination, for use in mattresses, furniture, or other cushioned flexible support structures, wherein coils of the innerspring assembly have terminal convolutions which extend beyond the coil body and are not connected to adjacent coils. A cavitated pad has openings in which the terminal convolutions fit, and the pad overlies the coil bodies. In one embodiment, the cavitations extend either partially or entirely through the pad. Upholstery is attached over the pad. The combination of coils with terminal convolutions positioned within the cavitations in the pad provides a dampened or attenuated dual spring rate support surface with controlled lateral deflection of the terminal convolutions.