Our Monaco Diplomat came with a Flexsteel sofa that had an inflatable mattress that was mated to a foam mattress. When inflated, it was hard to tell that it wasn't an innerspring mattress. It was extremely comfortable. The material cover was very sturdy and prevented the mattress from pinching when it folded up.
The mattress was inflated by a small round blower that quick connected to the foot of the bed and inflated in seconds. A large door opened up for deflation. I would order one of these again in an RV.