Ive got my own room so I like to hide out from time to time.
However, Just an idea, Ive seen some 'quilting boxes/desks' that open up when you want to to sew and you just fold when your done..
Kinda like the one pictured, Check out thrift stores, post an add on Craigslist and freecycle.. Who knows there may be someone looking to find a new home for theirs... Good luck..