Sleep pad vs air mattress?

[Taudisio]

how much space do you have in the truck? You can just buy large sheets of mattress foam in different densities, but might have trouble compressing it for transport without a heavy-duty bag and and vacuum pump... (diy mattress foam example)

I was not referring to sleeping in the truck, but bulky transport doesn’t sound good either. Especially memory foam in wet conditions or very dusty conditions. I have three thermarest inflatables which are what I use when I’m using my backpack, but a ~2” thick air mattress a little bigger than my body, will never be as comfortable as a 6”+ thick, queen size. I bet throwing a tarp with reflective side up under the air mattress would help insulate from the ground a bit. Might be worth exploring.