Googling and ran across this, which seems neat, but I still haven't quite figured it out. http://www.ohdeedoh.com/ohdeedoh/seating-kids/foldschool-cardboard-furniture-054224 However, that link led me to this http://www.ohdeedoh.com/ohdeedoh/look/look-toti-bunk-by-koon-063552 which is probably the neatest loft bed I've ever seen. Didn't dig for plans, so don't know if there are any, but 'real' woodworkers don't need plans anyway. But if I made one I think I'd consider some sort of railing on those steps, or have them against a wall.