is not being lifted by cam 109 fig2 shows four gel cushion cylinders 100 interconnected in an array a cylinder housing 202 encases a gel cushion cylinder 100 and allows it to ascend and descend along a linear path a link bar 200 passes through one or more gel cushion cylinders 100 linking them together into a group under each cylinder housing 202 the cam 203 which is rotated by the link bar 200 causes ascending and descending of the cylinder housing 202 causing the gel cushion cylinders 100 to ascend and descend fig3 shows a plurality of gel cushion cylinders 100 arranged into a seating surface sized array with a mechanism operable to cause groups of the gel cushion cylinders to ascend and descend a plurality of link bars 200 underlie the gel cushion cylinders 100 linking them together into groups the link bars 200 terminate with a worm gear 301 that engages a worm screw 300 rotating drive in this embodiment the link bar periodically rotates each cam in 90 degree increments thereby raising and lowering each gel cushion cylinder 100 through a sequence of four positions in alternative embodiments the sequence includes a different number of positions corresponding to a different amount of rotation each time and might include fixed or variable amounts of time between each partial rotation for example the system might pause ten seconds thirty seconds one minute two minutes five minutes ten minutes a half hour or any other period of time between partial rotations as will occur to those skilled in the art fig4 shows a front elevation view of a plurality of gel cushion cylinders 100 linked into groups by a plurality of link bars 200 with each end terminating with a worm gear 301 because of the differing shapes and.