Insomnia (also called insomnia disorder) means not being able to sleep well. Short-term or temporary insomnia is very common and usually isn't a problem. Chronic insomnia lasts a month or longer. It can be caused by other problems, like depression, chronic pain, medicines, or poor sleep habits.
Primary Medical ReviewerKathleen Romito, MD - Family Medicine
Specialist Medical ReviewerLisa S. Weinstock, MD - Psychiatry
Current as ofNovember 20, 2015
WebMD Medical Reference from Healthwise