I use a Teton XXL foam pad with a couple layers of egg crate foam on top of that on a 40"x86" cot with my giant Slumberjack rectangular bag. I sleep better on that than I do in my bed at home. In fact, I take it with us on trips because there are five of us when we all go and I'll sleep on it in hotels. And we are all fighting over it because it's so comfortable. I have similar setups for all of us when we go camping so everyone can be comfortable. Over half of the back of the truck (F-350 with camper shell and long bed) is just rolled foam.