We took the AF1150 out to our land in Nacogdoches this past weekend and it got down to 28 degrees. No problem for the coach, but it seemed like cold was literally seeping up from the mattress. I got...
A 2" foam topper combined with a 1/2" foam board under the mattress works well for me. If I could afford to loose the head room, I would have gone with 1" foam board.