Our 1st
DVC experience was at OKW - thankfully we had a 2BR and no one had to sleep on the sofa that time. Last summer we were SO impressed with the sofa at BWV, since we were only getting a 1BR. My then-DD6 wanted to sleep in the pack&play

so the other 2 slept on the sofa. This summer the 2 girls were on the sofa at SSR - not memory foam, like at BW, but still comfortable. DS10 put the sofa cushions on the floor and made himself a bed. He could have fit on the sofa mattress, but didn't want to share with the girls. We had a great time and it worked out well, but from now on, we will try to get 2BRs, simply so that our living room is not always a bedroom!
Overall, I have been impressed with Disney's sofa beds. We thought the one at BW had a Thomasville tag on it, so we went to a Thomasville store, hoping to find a similar model for our own home - it was that comfortable. Unfortunately, either we had the wrong brand or that set-up is exclusively for resort furniture - Thomasville's sofa selections were antiquated and frumpy, IMHO.
BTW, we recently visited the GCV model at DL. It has a sofa AND a fold-down wall bed that was really cool. It looked like a nice wood built-in entertainment unit, but the lower half was really a bed that you could unlatch and fold down. I didn't lay on it, but it looked comfortable!