I just got back from a weekend in the woods with my Hennessey
Ultralight Asym. Light breeze of 5-10mph for 1/2 the night and temp
was 35 degrees overnight (or at least at 2am when I went pee). I was
in a Slumberjack down mummy bag rated at 30 degrees. No pad (forgot
it -- would have sworn it was already in my pack when I put the rest
of the stuff in...but turns out my son took it from my pack to use
himself). But I did have a Reflectix type truck windshield screen
As for clothes -- fresh dry wool socks, silk longjohns, nylon pants,
cotton t-shirt, lightweight fleece vest. Forgot the hat too :(
Woefully ill-prepared but I was in a big hurry to get on the road
and figured it was all in the pack like it usually is --- just
didn't count on number 2 son.
I was a little chilly at times when the windshield screen would
slide up the side of the hammock but once I made it wider (it was
one of those 2 piece screens where you size it for the size truck
windshield by adjusting the overlap and I didn't notice the "seam"
down the length) it fit edge to edge & I stopped needing to adjust
it underneath me.
Not my preferred winter-ish sleeping but still better than on the
ground in a tent. I woke up a couple of more times then normally
when in the hammock but less than when I'm in a tent. And since the
ground was wet with the 4 feet of snow that recently melted (with
the help of an inch of rain) I would have been sleeping squishy!
BTW, Jerry's self-tensioning fly worked great (using slingshot
tubing between the fly ring and the fly's cord).