It is weird that in this game you have to eat, drink, protect yourself from weather, gas, poisons but you can walk,fight,run,jump,climb 24/7… in other words, character never sleeps, he doesn’t get tired at any circumstances.
Would it be problematic to insert a “sleeping need”?
This way you could also make the time pass (for example skip the night that is more dangerous) and move in the daylight, that would be more realistic.
I can comprehend that people would skip all the nights, but maybe you could be allowed to sleep only into a proper bed (not bedrolls) and ONLY in full shelter situation (inside a refuge/home).
I think it would add some pepper to the surviving.
Just a 2 cents idea…