Get enough sleep. Adults need 7 or more hours each night, school-age kids need 9–12, and teens need 8–10.
Note: The worse thing is to wake up in the middle of the night and get stressed about not being able to go back to sleep. Once our mind kicks in, it’s over for a couple of hours. Been there, done that more than once. Now, I don’t stress about it. I tell my mind, “Have your workout, don’t the let door hit you in the ass when you decide to leave.” Then I begin counting backward from some random number and in my mind I draw the letters with my breathing. That little trick usually works. I read where eating some pineapple within an hour of bedtime encourages sleep. I tried it. It actually works for me. Maybe you want to give it a try. Happy slumbers.