My two sons, 12 and 15, share a bedroom and they need to be split up for the sanity of their mother. This large 2nd bedroom will be a good selling point for the house when I sell a couple years from now, so I don't want to build a permanent wall. The decorative screens I've seen or a sheet suspended from the ceiling would be too flimsy. Help! I need ideas for suitable materials and some instructions for assembly.