A bed assembly (10) includes a frame (22) which supports four mattress supportpanels (50-56) which are able to move with pivoting of the various parts of theframe (22). The frame (22) is formed with a plurality of transverse struts (40)which depend from the frame (22). The mattress support panels (50-56) are releasablysupported on the struts (40). The panels (50-56) can thus be removed to gain accessto the bed components below the platform (20). The frame (22) presents substantiallyvertical side wall to accommodate a variety of mattresses, including mattressesnot specifically designed for the bed (10).