How do I divide a bedroom, semi-permanent? I have a 13 yr old boy an a 14 yr old girl sharing a 10 x 11 bedroom. I'd like to provide them with some privacy and a quiet space to escape to. Something more noise dampening than a curtain; but ultimately removable, as we are renters. I'm thinking dry wall and some kind of brackets to attached it to the existing wall and ceiling? Any suggestions? Thanks!