We replaced ours with another brand Simply Sleeper. It was a little pricey $115 a few years ago but the quality was very good. Heavy gauge and comfortable for an air mattress. We do not however fold it up in the bed. We open the bed and put mattress on wire frame. We deflate it,fold it and put it in its own bag in the drawer under the couch. It has a deflate on its pump also. It's still going strong and we use it in the S&B from time to time.
We did something similar, bought from Sports Authority, and also store in the sofa drawer. Cost $250 but obvious quality, 14 inches tall, with felt cover and electric pump. We open the sofa, and simply set the mattress on top.
Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7