Symptoms:

• Difficulty falling asleep on most nights
• Feeling tired during the day or falling asleep during the day
• Not feeling refreshed when you wake up
• Waking up several times during sleep

People who have primary insomnia tend to keep thinking about getting enough sleep. The more they try to sleep, the greater their sense of frustration and distress, and the more difficult sleep becomes.

Signs and tests:

Your health care provider will do a physical exam and ask you questions about your current medications, drug use, and medical history. Usually, these are the only methods needed to diagnose insomnia.

Polysomnography, an overnight sleep study, can help rule out other types of sleep disorders (such as sleep apnea).