A collapsible bed is disclosed, foldable upright for storage in an article of furniture. The frame of the bed is formed of three connected longitudinal sections supported by three pairs of floor-engaging legs. The rear section is foldable over the middle section and the latter two sections are foldable over the front sections which can then be pivoted to an upright enclosed configuration in the article of furniture. Lock means are provided to prevent the collapsed frame from unfolding of its own accord.