If I strap the sleeping bag to the outside, I could probably use this pack for 3-4 day trips in cold weather.
I prefer cold weather camping.
Once upon a time I had friends that did extreme camping, I call it extreme. Their cold weather tent had 15' escape tunnel tubs, and could with stand being covered with snow several feet deep. They also had equipment to sleep hanging off a cliff or shear wall. I do not know if they ever used it. I question the safety of that old stuff... (New then, old tech to day). I hope not that cold?