Insomnia is a common sleep disorder characterized by an inability to fall or stay asleep or both. As a result, you may get too little sleep or have poor-quality sleep and wake feeling tired or lethargic. Symptoms of insomnia include:
- lying awake for a long time before you fall asleep
- sleeping for only short periods
- being awake for much of the night
- feeling as if you haven’t slept at all
- waking up too early
Your doctor will diagnose insomnia based on your medical and sleep histories and a physical exam. He or she also may recommend a sleep study to measure how well you sleep and how your body responds to sleep problems. Treatments include lifestyle changes, counseling and medication.