Learn how to evaluate and treat patients presenting with insomnia or excessive sleepiness.
Recognize the causes of abnormal sleep-related behaviors.
Identify the different circadian rhythm sleep disorders.
Insomnia can be defined as repeated difficulty with either falling or staying asleep, or earlier than desired morning awakenings. Excessive daytime sleepiness is characterized by the inability to consistently achieve and sustain wakefulness and alertness to accomplish the tasks of daily living. Narcolepsy is a neurologic disorder characterized by the clinical tetrad of excessive daytime sleepiness, cataplexy, sleep paralysis, and sleep hallucinations. Parasomnias are physical or experiential phenomena that develop during sleep. Restless legs syndrome is characterized by an urge to move, or unpleasant sensations, in the legs (less commonly the arms) that begin or worsen during periods of rest or inactivity; is relieved transiently by movement; and is worse, or occur only, at night. Circadian rhythm sleep disorders are caused by a recurrent or persistent misalignment between the desired sleep schedule and the circadian sleep-wake rhythm.