Subscribe to our newsletter. Most of us know the feeling. You want to sleep, but you can't sleep. Some nights it seems you never drop off at all. There are three medically recorded types of insomnia .
Transient insomnia lasts only a night or two, or, at most, a week.
It is usually caused by some outside influence like excitement or worry. Worry over other health problems, business or relationships can bring on a bout of short term insomnia. Chronic insomnia is a serious problem. These three types may often overlap. Although anyone can become a victim of insomnia, some people are more susceptible than others.