Therm-a-Rest - Military Self-Inflating Sleep Pad

I would look at the US military’s self inflating sleep pad. They are made by Cascade Designs, are 1.5 inches thick when inflated, have an R-Value of 4.5, relatively bombproof, and can be had for $25 used. Edit: It will probably help that they are an NSN and issued item to keep SGM’s eyes off you. Usually they are only issued to soldiers in cold climates.

So I spent alot of time sleeping outside after the army. And here's my 2c if got some cash spend the money on a Big Agnes pad yes they require inflation but man I'd rather sleep on that then my real bed some days. I have an older model Divide insulated pad. Folds down to the size of a Nalgene bottle. Yes they aren't camo or high speed colors but a poncho can fix that. 2nd option is the therma rest z fold. It's my quick and light option but I bring a klymit inflatable pillow with me so it makes up for it. Or the issued army therma rest pad. Not bad either.

I just switched from expensive Thermarests over to these crazy cheap Night Cat hand pump pads and I am never going back to thermarest/self inflation. My arm goes dead without fail sleeping on the Thermarests and they take up nearly twice the room in my gear. The only benefit of the Thermarests I can see is that they are really tough, which could be great for some hardy adventures maybe. But nothing a couple patches can't fix IMO... So Choo choo I'm on the air pad train. These newer cheap designs are legitimately very good, they roll out crazy long and then shrink up. I probably can't share amazon links but "Night Cat Inflatable Sleeping Pads". There's a bunch of brands making this style now too, I'm not trying to spruik any particular brand, this was just the one that was affordable where I live.

The Xtherm is reasonably durable, but not enough so that I've ever trusted my life to it in remote extreme conditions. Like most people, I pair it with a foam pad. The foam pad is great to have anyway. You can put it right on the ground or snow to sit or stand on at camp, and you can cut off a piece if you are building a splint. It also serves as an emergency backup if the Xtherm develops a leak that can't be patched. The classic self-inflating Thermarest pads that they have been making for 30+ years are less warm and less comfortable than the Xtherm, but far more durable. Those have some foam in them, so they don't roll up as small, but they will still provide a little warmth if they spring a leak (though they also have bomber construction and almost never fail). They are issued out to troops by the US Army (I take it from your photo that you are one of those types of people to whom that endorsement matters). However, for the temperatures you are talking about, you will still want to pair that pad with a foam pad. The best combination is a modern lightweight inflatable foamless pad with a high R value like the Xtherm, combined with a foam pad like a Z-rest or a RidgeRest. If you're very concerned about bulk, you can of course trim the foam pad down to a 3/4 length. I prefer the folding Z-rest style over any pad that needs to be rolled, but that's your preference.