[QUOTE=outdoorsguy;1124061I did my backyard test a few nights ago with my NX 250. It got down to 29 and my z liners worked ok...but I had to come in and grab my thin, egg crate surfaced ccf about 2 am. My back wasn't really cold, but was getting cool. Then I started getting cold under my AHE Owyhee OQ about 3 am and I finally bailed into the house, chilled, about 5 am. Never really got super cold, but was just uncomfortable enough not to be able to sleep, you know?
To what do you attribute the lack of warmth? Do you think it was just too little insulation in the Z-liner or was it gaps between the pads? Or something else?