Although I hung the hammock up a few nights ago, with New Years and family, etc. I didn't spend a full night out, though I napped in it during the day. Well last night I headed out and spent a full night in the hammock. I had put a couple of blue underpads between the layers, then laid in an older synthetic fill bag on top of that. I wore two pairs of socks, polyprop underwear, poly overwear on my bottom half, two poly tops, a down vest, and a polar fleece for the top half, with a balaclava for my head, all snugged inside a down mummy. Needless to say I was quite comfortable. Woke only once at about 3:30 for nature's call, then back to sleep till 8:00. The wind catching the tarp disturbed my sleep from time to time, and I could sense it dipping down in temperature during the night. I am attaching a photo of the thermostat taken this a.m.
Oddly, though living in my house for the last 21 years, and having tented on the lawn in the summer, this was the first time I slept in the back treed part of the lot. It was wonderful... thanks to you folk on hammock forum for bringing to life a whole new experience.