Yep, I have a 5yo who is here Tue/Thur and every other Friday, and he has to stay on the couch during quiet time. He can watch a movie, read books, play quietly with some toys, but he's not allowed to get up and run around. Quiet time is quiet time. I do nothing to entertain him. He's fine.

We can't work 9-12 hour days without a break. It's not ok. Let the boy deal with it. He'll fall into routine soon enough.