My Uncle Sam gave me a US issue cot, Thermarest, and sleeping system with Gore Tex liner. I use this setup all over the world and it has never let me down. For military use, or my own personal camping/hunting uses. I used to average about 190 days a year on a cot, and could not sleep on my bed well when at home. Hurt my back. Wife loved that....I think the Thermarest works well with the cot, especially for keeping the cold air from under you, and, I hate bugs crawling on me in my sleep. Not to mention, sleeping on cold, frozen, lumpy ground kinda sucks, since we are used to those comfy bed things. Use the cot without the Thermarest in the summer, and a cool breeze blows up from underneath. Well, depends on where you are....I recommend this setup. And a lot cheaper then REI. Sorry, (REI, not trying to punk you out) but, you can go to any army navy surplus and get a surplus cot/heavy ass arctic sleeping bad for pennies on the dollar compared to REI. Just my $.02. later JL