A bit of help for crew management

[Excelsior82]

Originally Posted by flakmonkey

As snestorm said, they need to be in quarters to rest, but you can also turn off crew fatigue altogether using sh3 commander.

I would prefer avoid the latter option if possible, but I don't understand very well how the crew management works in SH3. I'm more used to SH4 where your crew works in 3x8 (on duty, maintenance, sleep).
But if I get it right, with SH3 your crewmen can works 120h straight without getting any sleep ?

Is there a way to play with crew fatigue enabled in a realistic way ?