Insomnia is a condition of not being able to fall asleep, stay asleep, or get the benefits of sleep. Insomnia can be its own disorder or a symptom of physical illness. It can also be caused by menopause, depression and anxiety, certain prescription medicines, stress, too much caffeine, drug abuse, chronic pain, and poor sleeping habits. Follow the links below to find WebMD's comprehensive coverage about insomnia, its causes, symptoms, treatment, and much more.
Diagnosing Periodic Limb Movement Disorder
WebMD explains how periodic limb movement disorder, or PLMD, is diagnosed.
Learn more from WebMD about the signs and symptoms of insomnia.
Drugs to Treat REM Sleep Behavior Disorder
Learn about the medications used to treat REM sleep behavior disorder.
Menopause and Sleep Problems
Difficulty sleeping is a normal side effect of menopause. WebMD tells you more.
Sleepless in America
Wake up, America! Most of you are not getting enough sleep.
Better Sleep by Labor Day
WebMD tells you how to combat insomnia during the lazy, hazy days of summer -- and beyond.
When Counting Sheep Fails: The Latest Sleep Medications
Learn about the new generation of sleeping pills for insomnia.
How You Sleep Offers Clues to How You Live
Overcoming Insomnia: One Woman's Story
Is the stress of children, jobs, and daily life giving you insomnia? See how you can fix your poor sleep habits and get some rest!
What Your Sleep Position Says About Your Personality
Could there be a relationship between sleep position and your personality?
Always Tired? Find Out What's Wrong
If you think you're getting enough sleep but are always tired, you may have a sleep disorder.
Is Anxiety or Stress Causing Your Insomnia?
Can't turn your mind off when you lay down at night? You may need to be treated for anxiety.
Slideshows & Images
A Visual Guide to Sleep Disorders
Pictures show you the symptoms, causes, tests, and treatments for sleep problems.
Insomnia Myths and Facts
Do insomnia myths keep you up at night? This slideshow looks at the myths and facts surrounding lost sleep and how to deal with it.
Slideshow: Insomnia Myths and Facts
Work and Sleep: Is Lack of Sleep Hurting Your Job Performance?
Sleep and Menopause: Fact or Fiction?
Sleep Quiz: Crazy Hours on the Job
Sleep Quiz: Is Sleepiness Hurting You?