If he wants to, why not? Everyone has their comfort for going to sleep. For me it is reading until I fall asleep. If it becomes a problem in the relationship then he may need to get rid of it.
No. If they were working in one of the factories they didn't even get a bathroom break or lunch/dinner time.
It's impossible to be completely objective but generally separating boys and girls serves no purpose other than alienating one sex from another.
No. It is Roma Downey.