Abstract: A portable, integrated baby or pet bumper device is described. The invention includes a flexible padded base and a plurality of padded wall sections integrally attached to each other. The wall sections may be raised and fastened together such that an interior cavity is formed. The bumper device may be used alone or inserted in part or all of a sleeping apparatus. When the wall sections are raised and fastened together, the playpen is in an erected configuration, and when the walls are unfastened, the playpen is in a collapsed and thus easily transported configuration.