Patent ID: 8572783

Claim:
A device for supporting at least a portion of a user's body, the device comprising: a plurality of bladders capable of containing a fluid, the plurality of bladders including at least a first bladder and a second bladder; and a plurality of posts adjacent to and supporting the plurality of bladders, such that at least one post is positioned adjacent to and supports each of the plurality of bladders, the plurality of posts including at least a first post and a second post, with the first post positioned adjacent to and supporting the first bladder and the second post positioned to adjacent to and supporting the second bladder, wherein the first and second bladders each forms a rolling diaphragm portion with the first and second posts, respectively, such that when a force is applied to the first bladder, the rolling diaphragm portion of the first bladder rolls along the first post decreasing the volume of the first bladder, and when a force is applied to the second bladder, the rolling diaphragm portion of the second bladder rolls along the second post decreasing the volume of the second bladder.