chuck box design by lupinsea found at the Expedition Portal. Looks like a lightweight, compact and functional idea (there’s a video below showing how it is set up. I could not find any plans for this box)
This would work, bed could also be couch with just adding pillows. Add bathroom & kitchen, MY NEW HOUSE! :) The Ovida tiny house, a 160 sq ft vacation rental at the Getaway House resort north of Boston.