Sleeping setup and general gear recommendations for ski touring

I can't say much about British Columbia. Most of my area of operation is California. I've been out for a couple of weeks in temperatures down to -10 F, but I think B.C. will go colder than that.

I use a 30-year-old REI bag, 600 FP down rated to -20 F or else a 15-year-old NF down bag rated to -10 F. I quit using air mattresses for winter about 10 years ago. Whatever I use for a foam mattress, it is at least twice as thick as what I use for summer.

Your theory sounds right. I guess if you are on a tight budget, then you will have to go with some combination like you suggest. Keep in mind that synthetic bags like that are enormously bulky, so pretty soon you have to take a bigger and heavier backpack.

Tents can be a problem, also. In those temperatures, things don't stretch the way they normally do, so things break instead. That applies to fabrics, plastic connectors, adhesives, and about anything.

–B.G.–

Bob,
thanks for your input. What do you do with the moisture that gets trapped in your bag overnight? I can see airing it out on my pack sometimes, but not most days. Doesn't your bag end up moist, and less effective?

Are you not in a tent, in that case? Tents are problematic because of all the trapped moisture if you don't have good ventilation.

thanks,
Simon

Since you're only sleeping one night in the tent, you can stop worrying about moisture buildup in your sleeping bag.

Agreed – but I'd like a solution that will work for my longer trips as well.
Curious how other people deal with this.

-s

"What do you do with the moisture that gets trapped in your bag overnight? I can see airing it out on my pack sometimes, but not most days. Doesn't your bag end up moist, and less effective?"

This may sound odd, but don't trap so much moisture. Don't cinch up your bag too warmly, and that lets some steam out via the head opening.

Yes, the bag still accumulates some humidity. When you get up in the morning, there will be some finite amount of time before you are packing up to move. So, as soon as you vacate the bag, you turn it inside-out and try to hang it up someplace dry. That might be in the tent, on a tree branch, or between two skis in the sunshine. You try to let it steam dry as much as possible before you stuff it.

"Are you not in a tent, in that case? Tents are problematic because of all the trapped moisture if you don't have good ventilation."

You just answered your own question. Ventilate the tent better. You are not supposed to seal up the tent to preserve warmth. Instead, you close it up enough to shed most wind and precipitation, but you maintain some airflow to keep things semi-dry.

Sometimes I am in a tent on the snow, and sometimes I am in a snow shelter down in the snow. Strong wind blowing through is bad. A bit of ventilation is good.

I would not recommend the use of a woodburning stove in a snow shelter, but often we will run a white gas stove in the doorway or vestibule. I've tented as high as 19,500 feet elevation with the white gas stove burning in a vestibule.

–B.G.–