Working third shift for me was a challenge, but I found a few little habits to help me get through the week.
One of the most beneficial actions I took was arranging my schedule so that it was dark when I went to sleep. For example, sometimes I was able to get off work in the morning and get home and in bed before sunrise. Other times I would stay awake all morning and go to bed whenever the sun went down. Of course this method didn't help much when sunset was late.
I would go through brief periods of sleep deprivation, and I battled insomnia. Quite often, I used natural sleep aids. There are several herb teas that helped, but sometimes I simply had to wait for my body to decide it was tired and needed to fall asleep.