Definition Of Main Sleeping Disorders
Excessive daytime sleepiness is a category of disorders causing individuals to sleep often during the day more often than taking the occasional nap. One key example of excessive daytime sleepiness would be narcolepsy, the significant tendency to fall asleep when in relaxing surroundings, regardless of the time. Sleep rhythm problems involve not being able to sleep on a regular, healthy schedule. These can include a delayed sleep pattern (two or more hours delay), advanced sleep pattern (the reverse of delayed, where a person sleeping earlier and wakes earlier than most), and an irregular sleep rhythm (no discernable pattern, in and out of sleep).
Sleep-disruptive behaviors include conditions causing aberrant behaviors while asleep, such as sleepwalking. Insomnia is perhaps what most individuals would first think of when they hear the term 'sleeping disorder.' It is a condition wherein individuals cannot fall or stay asleep.