It's also questionable to listen to what others tell you is the best way to grab some rest on the midnight shift. I've heard the go-straight-to-bed idea. Some believe you should stay up and then go to sleep, waking up ready to go in. Others recommend power naps.
You have to find what works for you. Face it, we're all different. Your station in life may be different as well since you may have to watch the kids after they get home from school. You'll have to experiment and find a system that works for you.
If there are gimmicks out there to help you sleep, a cop has tried them. White-noise machines, sleep blindfolds, herbal remedies, and nose strips — cops have tried them all. Again, you'll have to find what works for you.
The biggest lies come from people who tell you they can go on two hours of sleep. Your body is not designed for this abuse and won't function effectively. Granted, I've seen some who can function normally on 5-6 hours a night. I know others who are dragging if they have one minute shy of a full eight.
"Let's drink a magic potion of kick-butt energy, and we can go on without proper rest," we say. When I was a rookie, all we had was coffee and Jolt cola. Now there are energy drinks, energy shots, and even caffeinated chewing gum. Next, we'll have caffeinated pizza with mushrooms and B-12. I admit that I'm a coffee addict; these chemicals only make the crash worse. Limit these and use your head. Good nutrition and proper vitamins will cover the requirements, so watch your intakes.