A similar question was recently asked on another forum, this was my comment;
"Back in the late fifties I went through a two day snowstorm, not quite a blizzard in the following fashion.
1. A very sheltered spot in a dry gully.
2. A reflector fire in front of a lean-to rigged army poncho.
3. About 2 1/2 feet of debris and leaves under me.
4. Two GI army blankets.
5. Temperature never got much below mid-20's.
6. I was in my late teens, and spent all my time outdoors, and normally slept in a room with no heat anyway . (After a while you get used to the cold, sort of.)
I had plenty of food and firewood and I got through it all okay, But not very pleasant.
Wearing fairly heavy hunting clothes, once I stoked up the fire, I could sleep for about an hour and a half before the cold woke me up, then it was stir up the fire, add wood, eat a candy bar and sleep for another hour or so, then repeat the routine. As snow piled up on the poncho and at the open ends it seemed to stay warmer longer.
The next week I bought my first sleeping bag.
Since then I've used a foam pad, 3 1/2 to 5 pound sleeping bag, a full sized foam pad and an All weather Space Blanket as the lean-to. It's worked well into the 5-10 below range, tolerable below zero, fairly comfortable above. Again during times I was spending a lot of time outdoors in the cold.
If I slept normally in a 70 degree house with an electric blanket or something, I think the sudden transition could even be fatal, miserable would be guaranteed.
Well sheltered from the wind is absolutely mandatory.
Two blankets and a canvas tarp are not a good choice for the upper mid-west in winter!
In my opinion.
Tried to do some testing this year on several variations with just space blanket pad and sleeping bag, but it never got cold enough long enough for me to do it, (wanted 3-4 days of prox. -10f) maybe next year.
Just my opinion of course!
Regards,
