Originally Posted By: philip

Yeah, it'll be a problem for my wife and me. She covers her head up with the blankets when she's cold, and when we slept under a space blanket, the condensation soaked our sleeping bag. I don't cover my head, but I sweat a lot.

I'll stick with space blankets that we can get out from under to cut down on that condensation. We need breathable gear in our situation.

Situations vary, of course.


I tend to sleep with my face partly covered. Re-breathing my own breath when it's cold to warm the incoming air. Birds do it by tucking their head under a wing. Squirrels do it with their nose stuffing into their bushy tail. I have invested in a poly fleece muffler and a fleece hood/cowl/balaclava. Either one allows me to keep my head out of the sleeping bag while allowing me to do my re-breathing thing and keeping my head warm. In very cold conditions the moisture collects on the outside of the fleece as ice. This is easy enough to shake out and the poly dries quickly.