Patent ID: 8555435

Claim:
A box spring comprising: a lower portion for providing rigid support to an upper portion; said lower portion having a rectangular perimeter with a plurality of cross supports located within the rectangular perimeter; a plurality of vertical supports extending upward from the rectangular perimeter of the lower portion to a perimeter wall of the upper portion; said perimeter wall having a lower surface that rests on the plurality of vertical supports; said perimeter wall having an upper surface on which an outer perimeter of a mattress rests; a plurality of cross supports located within the perimeter wall proximal to the lower surface of the perimeter wall and extending above said lower portion, thereby creating a support structure for a panel that rests on top of the plurality of the cross supports located within the perimeter wall; a plurality of springs located within the perimeter wall and on top of the panel superior to the lower portion of the box spring; said plurality of springs each having heights that are greater than the height of the perimeter wall so the plurality of springs extend above the upper surface of the perimeter wall, thereby creating a raised center portion; and said box spring being covered in cloth.