I had originally planned to pack a hammock, tarp and warmest sleeping bag I could find; I reasoned that as a solo hiker it'll be easier to set up and break down, and I'd still be nice and cozy on cold Feb/March nights. But a friend of mine today suggested a bivy, and now I'm torn. I've never used a bivy, but it's got all of the qualifications I was looking for, plus it should be a little warmer, especially if I can fit a down airmat in there.

Folks who have used bivvies, or both, weigh in! Thoughts?