Sorry for the slight thread hijack, but it's along the exact same lines...all this talk of sleeping pads in cold weather has me worried. I tend to sleep very cold. I've got an upcoming trip and I'll be sleeping on snow (in a tent), and the nightime temps are expected to be in the 19-22* F range. I was planning on stacking my two current pads, both Thermarests. A Ridgerest (closed cell foam), and a standard Thermarest inflatable.
Will these two do the trick?