Amazon Intex 64417ED 22in Queen Dura-Beam Air Mattress, High-Rise, Comfort Plush, Built-in Pump, 600lb Capacity - Ideal for Travel & Camping $64.99 @Amazon

All this talk about insulation takes me back—when I was doing shifts in remote clinics, it was always a foam pad or whatever blanket I had under the air mattress or cot, or else you’d wake up with your bones aching from cold seeping right through. Glad to hear the mylar blanket works if you can handle the crinkling; it’s
 
Can’t overstate how much that bit of “give” improves sleep and seems to extend the life of the mattress. Foam pad underneath is a staple for me too, both for warmth and puncture protection—learned that lesson quick after a stray twig tried to ruin my weekend. Mylar blanket trick works, but yeah, it’s a little crinkly and can get some
 
Layering a mylar blanket under the mattress really does ramp up the warmth—done that on a chilly night when temps dipped way lower than expected. It’s a bit noisy, sure, but I’ll deal with crinkles if it keeps me from freezing. Haven’t had big issues with moisture, but I’ll usually air things out in the morning just in case. Anyone here tried sandwiching foam and mylar together for even better insulation?
 
Overinflation can be an issue, but with careful monitoring, it's manageable. Anyone tried a patch kit for minor leaks?

Overinflation can sneak up on you, especially with those built-in pumps, but I’ve found it’s more about knowing when to stop rather than trusting the auto-shutoff. That said, a little give is better than a rock-hard bed anyway—just like the old straw tick mattresses from way back. As for patching leaks, I’ve had my fair share of punctures over the years (usually after dragging the mattress over a pine cone or two). The standard bicycle tire kits work in a pinch, but I keep a vinyl repair kit handy, since it bonds better with the Dura-Beam material. Make sure the surface is clean and bone dry before applying the patch, then give it all