A device for upper body support of a recumbent person is provided, which comprises a first support portion, a second support portion, each of which is wedge-shaped. Each portion is, in vertical cross-section, substantially a right triangle. The longest surface of each portion forms a support surface and the thin end of the wedge of the first portion is hingedly connected to the support surface of the second portion at a position spaced from the thick end of the support surface of that portion. The portions are formed of a solid, yielding support material, such as polyurethane foam. Preferably the support portions have a water proof outer surface.