We dumped (no pun intended) the air mattress and purchased a queen size memory foam mattress from WalMart. Our son likes it much better. We roll it up, strap it, and store it on our bed during the day (makes a nice backrest) and bring it out at night. Good reviews. We purchased the twin size for the two beds in our TV. Here is a link:
http://www.walmart.com/ip/Modern-Sle...-Twin/21287286