There are 2 options:
1) get the normal amount of sleep (7-9 hours) with some naps during the day.
2) Take a few more hours of sleep along with your 7-9 hours.
Stories often include many types of conflict! Stories can be as complicated as the one who writes it wants. There are no other rules here
You might less confident in yourself
B. Sadly, even after that water is found, only some of IT'S clean and safe.