I was going to give you a bit of grief over this additional issue until I realized you've dealt with enough cr** the last few weeks. Personal opinion offered at no charge.....I think you should research what is available as standard or options on the trailer model you are looking at. Research it within an inch of its life. I'd bet that the sofa with an air mattress is available regardless of what the dealer said....seems to be the trend. You're in a part of the country that camping is likely not going to happen for many weeks. I think you should special order your trailer exactly as you want it. If that means searching for another dealer, then do it. You said you "bought" the trailer yesterday....does your state have the 3 day "buyers remorse"?? If so, you need to get a move on and cancel this deal PDQ. I know what you've dealt with recently is a PITA, but buying a trailer you don't absolutely LOVE everything about is not going to make you happy. IIRC, you were storing your previous trailer in a lot vs at home. So you save that many month's storage during this time you're trailer-less. Good luck. Hope you can work this out.