waggy
No Lifer
I've seen a solution to that for those who didn't want to pay for what they considered an overpriced air mattress. They each bought a xl twin bed that they liked, then he strapped them together and added a mattress topper. All of this contained inside one of those bed bug protector covers and he says they stay together pretty well. I would imagine a hassle to flip.
now that ain't a bad idea. i thought about the sleep number but they are so damn expensive.