Yesterday I was supposed to work from 4:00pm 'til 1:00am. I started a couple of hours late because I'd been up all night without sleep the previous night and didn't manage to go to bed until 1:00pm, three hours before I was supposed to start again.
So I started late and was supposed to finish again at 1:00am, but didn't get out of the office until 5:00am, home and in bed at 5:30am, 4 hours sleep and then gotta be back again for another afternoon start and 1:00am finish, up at 6:00am to play hockey.
The day before all this was a 7:00am start and didn't get away home until 9:00pm.
You pick up on some shifts and lose out on others in terms of down time
That **** will kill you (and most likely me) early, but been doing it so long I probably couldn't function normally doing regular hours. I love it. Sometimes you don't sleep for a day, sometimes you do just about sleep a whole day.