Funny you should ask that as I removed mine last week. A jackknife 72" You did not say what kind of sleeper or coach you have but I can tell you I dont think I could have done it alone if it was a fold out style. Too heavy I believe. It is just as Keger said, four screws and seat belt removal. I used one of the seatbelts to wrap the center of the couch so it did not open when shoving it out the door and that was that.
I am replacing it with a loveseat that works, again, just as Keger said, the back comes off by pulling the tabs on either side and lifting up the back while holding the tabs. Easiest is one side tap and rack the back a bit then the other side. If you dont do this you will need a third hand protruding from the area of your upper chest to hold the back.
Good luck and let us know how it worked out.
Good Luck and keep us posted please. "Q"
1999 Newmar, Mountain Aire 3768, V-10, CAI, Headers.
"Spending our kids inheritance one trip at a time"