I work 7 on 7 off nights, so I've gotten my regimen down pretty solid. When I'm working, I get home around 8 am, sleep at 10-11 am, wake up at 6:30 pm to get ready for work. When I'm not working it's not as consistent but I tend to wake up 6-7 am and sleep at grandpa hours. The 2-3 days before I start working again I'll have caffeine in the afternoon/evening to shift my sleep forward to prepare for my work week again.