You will love OKW.
We stayed in a 2 BR a few years ago and adult DD slept on the pull out sofa in the living room. She was comfortable. It is a pull out sofa and not as comfortable as a regular bed, but she said it was okay.
We go to the BCV nearly every year in a 1 BR and Adult DS sleeps on the pull out sofa in the Living Room. Again, he says it is okay.
The pull out sofa is comfortable enough that when we plan a trip to the F & W Festival and invite him to accompany us, knowing he will be sleeping on the pull out sofa in the Living Room, he always jumps at the chance with a yes
Hope this helps
I was just there in March and the sofabed that I slept on was pretty bad, oddly enough it was the old style with the bar in the back. Despite the discomfort, I slept great. Walk 15 miles in the broiling sun all day and I think you could sleep on a wooden plank .