An easy solution (and one that I have used) is to take off the crappy mattress on the sofa bed, and use a separate inflatble bed on top of it. It does make the bed kinda high, but very comfortable. Also, the frame is much, much easier to fold up and put away when there is no mattress on it. The inflatble mattress, of course, deflates and stores easily in the open area of the fold out couch. Another advantage to separate systems, is the inevitable puncture. If it was a cohesive unit, it would neccesitate repair or expensive replacement. My version = go buy another $29.00 mattress.