This sleep disorder is characterized by difficulty initiating or maintaining sleep. It is quite common and frequently coexists in individuals with obstructive sleep apnea. Treatment options for insomnia include improved sleep hygiene, medications, and cognitive behavioral therapy.
This class of sleep disorders includes atypical nighttime behaviors such as sleep walking, sleep talking, and night terrors. In general, these types of sleep disorders are not dangerous but there can be safety concerns.
This rare sleep disorder is characterized by extreme sleepiness with a tendency to have REM sleep at unusual times.
Circadian Rhythm Disorders
This common class of sleep disorders is characterized by a misalignment of an individual’s internal sleep-wake rhythm with societal norms. Examples include shift work sleep disorder, delayed sleep phase syndrome, and jet lag.