Having a flexible schedule can sometimes help with this. Every once in awhile I find myself unable to fall asleep till about 6 or 7am and being able to get up a

Having a flexible schedule can sometimes help with this. Every once in awhile I find myself unable to fall asleep till about 6 or 7am and being able to get up at 11 or even 12 and start working has saved many a day from being a sick day to being slightly unproductive. Had I had to wake up before then, I'd have taken a sick day before even falling asleep. I understand not all jobs can work like this, but most can if allowed to. Unfortunately, most jobs don't allow it.