(CNN) -- Are you having trouble sleeping?
If you are, you may be one of the estimated 50 to 70 million American adults who suffer from a sleep and wakefulness disorder.
The most common is insomnia, where a person fails to initiate or maintain sleep.
This may also take the form waking up too soon, in which an individual wakes up several hours before they should and can't get back to sleep.
The Centers for Disease Control suggests 7 or more hours of sleep for adults between the ages of 18 and 60 years old.
If you don't, it could affect your overall health.
Here are some things you can do to improve your sleep health:
-Go to bed at the same time each day and get up at the same time too.
-Make your bedroom cozy, quiet and dark.
-Turn those smartphones, tablets and TVs off too.
-If you need a little white noise, try a fan.
-Avoid caffeine before bedtime.