we have 3 bedrooms, so my son's old room is the guest room and my daughter's old room is my sewing room. It does have a twin bed with a trundle under it--but no mattress on that as I use it as a giant drawer to hold fabrics. The walk-in closet still stores some of her stuff (about 1/2) my non-seasonal clothes, and my strings and other craft stuff. My long arm is in the basement and I use about 1/2 of the very large rec room for sewing space there--it' also includes my industrial sewing machine.