Abstract: A portable sleeping unit for children includes a collapsible frame and a hammock supported thereby. The hammock comprises plural fabric panels sewn together along their edges, with a stay embedded in each seam, and a slide fastener for interconnecting the two topmost panels to close the unit. The hammock is loosely suspended from the frame by straps extending from either end, so that when a child is placed inside the hammock, its weight bows the lower stays doenward, and the remaining stays bow generally outward to tension the hammock panels and produce a generally football-shaped enclosure.