Details on 22 Dec test...
- JRB Bear Mountain Bridge Hammock (BMBH)
- JRB Mt Washington Underquilt (MWUQ) underneath
- Sierra Designs Wicked Fast 30F sleeping bag + JRB Nest on top
- Worn: Mtn Hardware fleece beanie, Serius neofleece face mask, Montbell ThermWrap jacket, synthetic T-shirt, silkweight polyester long johns, synthetic hiking shorts, SmartWool socks
- JRB Gear Hammock Pack Cover hanging on head end for windblock
- Low temp 21F recorded on Brunton
- Winds 5-7 mph (weather.com)
- Humidity ~40% (weather.com)
My yard was muddy from the recent rains so I set up on the back deck. It's still exposed to the wind on three sides but the house provides a pretty good windblock. I set everything up and went back inside, then went out to bed just before midnight with ~25F temps. Saw a shooting star as I was getting in, then the static lightshow that nylon gives when it's very dry outside. Humidity was the 40% range...pretty low for NC.
The MWUQ was attached to the BMBH exactly as shown in the instructions. I had hung the BMBH too tightly so I had some gaps when I first got in...I lowered the hammock into the MWUQ and most of the gaps disappeared. I could feel the heat coming back to my torso almost immediately when I laid down. Good stuff.
I did have some gaps on the sides of my legs, though, and I'll have to play with it to figure out how to fix it. The MWUQ was snug against the hammock along the centerline, so if I laid right down the middle even my legs were warm. The gaps started around my butt and extended to around my ankles. Since I spent most of the night sleeping on my side, kinda leaning against the left wall of the hammock, I had to adjust my legs to the warm part of the insulation.
Still, I slept pretty well to the low of 21F. I woke up a few times but it wasn't b/c of cold legs. My wake-ups were b/c I was sweating inside the sleeping bag. I even tried to dress lightly, with no thermal top on under the ThermaWrap like I usually wear. Since I was zipped into the sleeping bag with the Nest on top, I had to unzip and fold the Nest down off my torso to vent. Little bit of a hassle, which makes me very excited to see how the MWUQ will perform as a top quilt. (I currently don't have a winter-worthy down sleeping bag or quilt except for the MWUQ.)
Remaining items to test:
- Measure the loft while the hammock is occupied.
- Fix the gaps on the sides of my legs when used on the BMBH. I'll start by loosening the end drawstring next time.
- Test for performance on HH, homemade Speer-types, and Warbonnets.
- Test for performance as a top quilt. This will be the narrowest top quilt I've used but that may be ok in a hammock.
- And of course find the low temp...my torso was toasty so if I can get the leg issues worked out I predict it'll be true to 10F for me, and I sleep pretty warm. Might be good to 0F for others.
Can't wait to try it out at Mt Rogers!! If I can make both nights I'll do one as an underquilt and another as a top quilt.
“Republics are created by the virtue, public spirit, and intelligence of the citizens. They fall when the wise are banished from the public councils because they dare to be honest, and the profligate are rewarded because they flatter the people, in order to betray them.” ~Judge Joseph Story
- My site: http://www.tothewoods.net/
- Designer, Jeff's Gear Hammock / Pack Cover
IMPOSSIBLE JUST TAKES LONGER