Try to limit night shift work, if that is possible. If you must work the night shift, the following healthy tips may help you:

-  Increase your total amount of sleep by adding naps and
lengthening the amount of time you allot for sleep.
-  Use bright lights in your workplace.
-  Minimize your shift changes so that your body’s biological
clock can adjust to a nighttime work schedule.
-  Get rid of sound and light distractions in your bedroom
during your daytime sleep.
-  Use caffeine only during the first part of your shift to promote
alertness at night.

- Eating Right on the Night Shift. Working nights means reprogramming the body to know when to eat. Many people make the mistake of eating poorly or overeating while working nights, driven by the stress of too little sleep and/or poor eating choices.
If you are unable to fall asleep during the day, and all else fails, talk with your doctor to see if it would be wise for you to use prescribed, short-acting sleeping pills to help you sleep during
the day.