For those, like me, with minimal sewing skills, here's an easy way to make a set of down booties...more like socks.
I cut off the bottom 14" of the sleeves from a JCP Puffer Jacket, turned it inside out, and sewed the big end closed.
You can wear them with one corner under the foot and they look normal, or you can pretend you're a duck and wear them like webs...especially if they're orange.
Simple, warm, and 1.9oz
Definitely for inside the hammock only.