Abstract: Collapsible structures are provided having at least four panels, including a bottom panel, a first panel, a second panel and a third panel. Each panel has a foldable frame member having a folded and an unfolded orientation, with a fabric material covering portions of the frame member to form the panel when the frame member is in the unfolded orientation. The fabric assumes the unfolded orientation of the frame member. Each panel further includes a first side and a second side, with the first side of one panel coupled to the second side of an adjacent panel, and with the bottom panel resting on the surface.