Funny thing is I have seen this thread before and the majority said the opposite of what's being said here--that the sleeper/sofa at BWV is very comfortable. I was one of those people, and I really do think it's fine. My daughter "The Princess and the Pea" who is really picky about such things, said the BWV sofa bed is the only one she ever found comfy. I have slept on it, and you don't feel a bar underneath you, or anything like that. It feels like a regular bed to me. But I will say we sleep on platform beds here, I never liked a mushy mattress, so maybe that's why my family has no problem with the BWV sofabeds.
I definitely would pick the pull out couch over an air mattress.