Insomnia can be caused by the lifestyle choices that you make. If you use a lot of stimulants like caffeine, you greatly increase the chances of suffering from insomnia. Conversely, depressants such as alcohol can contribute to sleep problems as well, despite the belief that you a drink will help you sleep.Another one of the facts about insomnia is that it can also be caused by physical pain, stress in your life, and even worrying about insomnia itself.Other facts about insomnia:-More than 60 million people in the United States alone suffer from insomnia on a regular or semi-regular basis-49 percent of Americans report having some sort of sleep problem