I'm looking at the photos Caskbill posted of the SSR sleeper sofa. I can't be sure, but it looks like this sleeper sofa is a bit different than the ones at BWV.
In the picture, some of the cushions are removed and it looks like it opens by pulling it from the front. Of course the BWV ones have the strap in the middle on the back of the sofa and you leave all cushions in place and pull.
Are there different models at the different resorts?
Boardwalk Prof