
Insomnia: Sleepless in America
An estimated 30 to 50 percent of the American population experience insomnia. (1) Those who ...
View MoreInsomnia Definition
Definition
Insomnia is a poor quality sleep. This may mean a lack of sleep or difficulty staying asleep. Some have trouble falling asleep, or problems waking in the middle of the night or very early in the morning. It may be characterized as:
- Transient—lasts from a single night to a few weeks
- Intermittent or short term—episodes of transient insomnia occur from time to time
- Chronic—if it occurs on most nights and lasts a month or more; this form usually needs treatment
