Your questions are only answerable by a lawyer in your state.
So see a lawyer and stop this where to sleep, battle.
It's not worth falling on your sword. You don't know your rights, you are debating something in front of the kids.
Your wife works at odd hours, right? So she has to sleep somewhere, while you are awake. In theory could she ask YOU to change to her hours?
See^^? This is minutia that stinks for your son. This is a distraction.
Learn your rights and start asserting them.
M: 57 H: 60 M: 35 yrs S30,D28,D19 H off to Alaska 2006 Recon 7/07- 8/08 *2016* X = "ALASKA 2.0" GROUND HOG DAY I File D 10/16 OW DIV 2/26/2018 X marries OW 5/2016