Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Parasomnias are a category of disruptive sleep disorders. Parasomnias may appear while falling asleep or at any point in the sleep cycle. Moreover, these sleeping disorders influence affected individuals during the daytime as well, leading to undesirable effects such as sleepiness. Although these disorders are usually diagnosed in children, adults may suffer from parasomnias as well. Learn more about the disorders included in the category of parasomnias, their signs, symptoms and treatment in this book.