I can't do overnights, I need my sleep and I can't sleep in bed with anyone. I prefer to do 7pm til midnight, I just tell the client that I to get home for my dogs. I find its better to do what you can tolerate, it's definitely hard to refuse when money is needed. But definitely be clear on sleep hours. Last all nighters I did the guy was taking coke, I didn't sleep at all and decided never again.