I don't normally have to deal with snow but temps can get rather low at times (20's) and the humidity is almost always high (75-85 pct). Looking at the distinct possibility of having to bug out from work (on a towboat) and facing 4-7 days cross country hiking to get home presents some problems because I am allowed only a small amount of space on the boat.
I plan to take my bedroll made up of 2 flat sheets, 1 fitted sheet, a falsa blanket, and a pillow. My Army poncho will fold in half and make up the outer shell of a "sleeping bag" that should suffice for "most" of the temps that we get.
This is gear that goes to the boat with me, plus a BOB and a duffle bag with more equipment, food, water, and a few niceties.
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QMC, USCG (Ret)
The best luck is what you make yourself!