The invention relates to a hospital and / or nursing bed (1) with a side rail (2), wherein the side rail (2) comprise at least one bar (10,) preferably at least two bars (10, 20), of which their ends are mounted slidingly relative to at least one post (40, 60) and / or a header / or foot part of the bed through sliding guides (16, 26, 41). In this case, the side rail (2) comprises an operating element (30). The operating element is set to loosen locks (19, 49) or clamps on movements of the two ends of at least one bar along the sliding guides (16, 26, 41).