Abstract: A space saver platform hiding bed assembly comprises a plurality of sidewall support members (20) (22) (24) and (26) of rigid material which can support weight. Such members are supported by a floor (F) in spaced angled relation with one another extending upwardly to form an open top and affixed by screws (30) to generally form a rectangular shape for suitably housing at least a mattress. A cover (28) of rigid material which can support weight is pivotally joined by a flexible device (32) to one of the sidewall support members to open for a human to sleep and to close for a human to work, entertain and play. The structure can be made in a variety of other styles, including a single bed, and a double bed and storage assembly.