My first thought is cool. my second is unstable; 3rd is heavy; 4th thought was single purpose; pricey. I'd be afraid to rollover in the middle of the night. I would like to be able to step out of my tent, not stand up out of my tent.
I have one of these cots and love it
http://www.luxurylite.com/
Then I can use my trailer, paniers, or whatever to carry it and my tent etc.