Retractable room treatment


Does anyone know of any retractable or removable room treatment systems for a large wall behind speakers? I have a challenging room, and a wife that won't let me treat it. I'm wondering if there are any sound absorbing screens that fold flat for storage, or any other type of retractable wall treatments?
mmike84
To what end? It's certainly a cost you'll never recoup if you sell your house. Also if you ever reposition your speakersÂ… Interesting idea but why not consider a special built room by Rives.
Beavis- I'm not planning to move but I think you misunderstood the question(s). Thanks for responding.

Riley- That looks like a great site that I had not seen before! Thanks!!