Air mattress in sub-freezing temperature

[SkyDog]

Exped 7 DAM on top of ccf pad took me to minus 7F (no wind) with no problems.

ccf pad was in the sleeve of a double bottom diy hammock.

Like Slowhike, I love my DAM! Great when/if you go to ground. IMHO, worth every ounce of the 2.5 pounds in sub-zero temps. Lightly inflated, it wraps around you in the hammock - nice!

[dkperdue]

http://www.campmor.com/outdoor/gear/Product___91302
Exped DownMat 9 Pump Sleeping Pad

Haven't tried it in my ENO Doublenest I modified with an external pad sleeve. But it worked great in a tent with 9 inches of snow last January.'
I think it would be good slightly deflated.