Mattress support structure

Claim 1

A MATTRESS SUPPORT STRUCTURE COMPRISING, IN COMBINATION: A MATTRESS SUPPORT FRAME; A MATTRESS SUPPORTED ON SAID FRAME AND BEING DEFINED BY TWO MATTRESS SEGMENTS EACH EXTENDING FROM ONE FRAME END TO APPROXIMATELY MID-LENGTH OF THE SUPPORT FRAME; A PAIR OF STRAPS ASSOCIATED WITH EACH MATTRESS SEGMENT AND EXTENDING LONGITUDINALLY OF EACH SEGMENT IN SPACED APART RELATION THEREALONG FROM THE ENDS, RESPECTIVELY, OF THE MATTRESS AND FRAME ASSEMBLY TO THE MID-LENGTH POSITION THEREOF, EACH OF SAID STRAPS BEING ANCHORED ONE END, RESPECTIVELY, AT THE FRAME ENDS AND EXTENDING ALONG THE TOP OF THE MATTRESS SEGMENT TO THE MID-LENGTH POSITION; MOVABLE ANCHOR MEANS FOR THE OTHER ENDS OF THE STRAPS, RESPECTIVELY, SAID MEANS INCLUDING FIXED POSITION GUIDE MEANS TO ORIENT AND MAINTAIN SAID STRAPS IN A PREDETERMINED POSITION ON THE TOP OF THE MATTRESS SEGMENTS, SAID STRAPS EXTENDING FROM SAID ONE END THEREOF, ALONG THE MATTRESS TOPS, BETWEEN THE MATTRESS SEGMENTS, OVER THE GUIDES AND ONTO THE ANCHORS; AND MEANS TO MOVE THE ANCHORED OTHER ENDS OF SAID STRAPS FROM A FIRST POSITION WHEREIN THE MATTRESS ELEMENTS ARE IN A RELAXED CONDITION TO A SECOND POSITION WHERE THE STRAPS FORCE THE SECTIONED MID-LENGTH PORTION OF THE MATTRESS AWAY FROM EACH OTHER IN THE ARER ABOUT THE STRAPS OF DEFINE AN OPENING IN THE MATTRESS.