Primary Insomnia:

Patient cannot fall asleep or stay asleep.

Primary Hypersomnia

Patient has excessive sleep without any medical conditions and is sleepy during the daytime.

Narcolepsy:

Sleepiness during the daytime in which the patient can have sleep attacks (quickly falling into sleep). Is associated with REM sleep during the day, hallucinations, cataplexy, sleep paralysis.

Breathing-Related Sleep Disorder (Sleep Apnea):

Sleep disruption at night that results in day-time sleepiness.

Circadian Rhythm Sleep Disorder:

Patient’s sleeping schedule does not correspond to his preferred sleeping schedule.

Dyssomnias Not otherwise Specified:

Includes Nocturnal Myoclonus (periodic leg movements) and restless leg syndrome.