US Patent 7404219 Portable infant bed with side wall ventilation

A portable infant bed has a bottom panel with a perimeter and a top sleeping surface. A side wall is connected to the perimeter of the bottom panel around a periphery of the bed. The bottom panel and side wall are foldable and unfoldable between an in-use configuration with the side wall extending up from the perimeter and surrounding the sleeping surface and a folded configuration with the side wall lying generally parallel with and adjacent the bottom panel. A vent through a portion of the side wall positioned at a level near the sleeping surface, the vent permitting air to pass freely through the side wall.