Thanks guys.
Knoll, I get good ventilation through the two windows. At 2 am when I crawl into the camper it's cooled off. The insulation should help keep the daytime heat down.
I finished installing the insulation today. I had some left over so I added a 3rd layer to almost all of the ceiling. When I was done with that I started on the flooring. That went pretty quick. It makes it look a lot better inside.
New floor mat installed
I put the temporary shelves back up. I need to come up with an idea for a permanent setup.
I got a memory foam mattress for it. No more noisy and uncomfortable air mattress. The box said it might take 48 hours to fully expand. The mattress is a little larger than the bed platform. I'll wedge it in there once it takes shape.