Apparatus for selectively supporting a section (9) of an articulated bed platform in a raised position relative to a frame of the bed includes a stay (11) having engagement member (13) which is able to reciprocate in a guide (15) provided on the frame. Locking means allow the engagement member (13) to be selectively engaged, such that the engagement member (13) either reciprocates in the guide (15), or is prevented from doing so. When the engagement member (13) is engaged, the stay (11) can support the bed section (9) in the raised position.
