I spend the night out in the hammock in the backyard last night. I know it was not really cold by most people's standards, but 23 F is not bad for South Carolina!
My top insulation was a summer down quilt I made with a nominal loft of 1.6" (7.5oz 900-fill down in an 82"x52" quilt). Bottom insulation was a 3/4 length down quilt, also filled with 7.5oz of 900-fill down and a 20"x20" Z-rest sit pad for the legs. I was wearing: ankle-high running socks, light-weight fleece pants, smartwool top, DIY Kinsman pullover with 1.8osy Primaloft, a thin synthetic balaclava and a wool hat. It was 28F when I went to bed, and I warmed up pretty quickly, except for my feet. I should have put on some wool socks, and for a while I thought I was going to have to bail. But my feet warmed up eventually.
At some point during the night, I woke up with a cold back. Upon inspection, I discovered that there was a huge gap between underquilt and hammock. I had the quilt suspended from the ridgeline, and I apparently managed to somehow loosen it with my legs. I pulled it tight and went back to sleep.
I think I want to try out a warbonnet-style suspension for the quilt by sewing a drawcord channel to each side. I am pretty excited about the underquilt, though. For just over 14oz, 23 F is not bad at all. Torso quilts rock!
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