Abstract: A method and apparatus for supporting a person in a seated or lying position, and for supporting a person's appendages, such as arms, wrists, hands and elbows, above a work surface. An appendage can be rested on an upper surface of a support pad provided on a work surface, the support pad having a plurality of fluid-filled cells separated by a plurality of seams. The support pad can be folded along at least one of the plurality of seams so that a first portion of the plurality of cells lies above a second portion of the plurality of cells to adjust the height of the support pad above the work surface. A portion of the plurality of cells can be removed from the support pad to create a desired configuration for a support pad. The support pad can be configured and used as a wrist rest for operating data input devices, such as a keyboard, a computer mouse, and a calculator, and used as an arm rest for writing or performing manual tasks on a work surface.