Insomnia is a disorder that most people suffer from at point or another. For some people insomnia is caused by a hectic period or at work or a time of personal stress and goes away after work dies down or the stress is resolved. But for other people insomnia is a chronic condition that can have serious effects on their health.
Going without sleep for a long period of time can cause a loss of mental function, clumsiness, impaired judgment, and other problems. That's why if you have had trouble sleeping for more than a week you should really try taking something to help you sleep. Most people are afraid to try prescription sleep medicine because they don't want to get addicted. Even over the counter medicines that are made to help people sleep are avoided by people that don't want to become dependent on a sleeping pill.