Last Updated on Mar 11, 2020

Classification of Sleep Disorders - Parasomnias

Parasomnia meaning "around sleep" are a group of undesirable, episodic events that usually occur during sleep, or are exaggerated by sleep. Parasomnia is associated with conditions such as sleep walking, sleep paralysis, night terrors, bedwetting.

Even though parasomnias occur during different stages of sleep and at different times during the night, the patient is partially awake either before, during, or after the event.

Most parasomnias often result from stress and may be associated with depression although, biological reasons cannot be ruled out. This condition is seen more in children than adults.


  1. Coren, Stanley. Sleep Thieves: An Eye-Opening Exploration into the Science and Mysteries of Sleep. New York: The Free Press; 1996, p. 287.
  2. Sleep Disorders - (


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Elderly66 Wednesday, April 17, 2013

I am 66 years old woman. Lately I am experiencing that in the middle of the night I am howling due to some terrible nightmare, generally I realise in sleep that I am howling, I get awakened, mostly am unable to recall the dream sequence, but a general feeling of dread is there. It is disturbing my family. I am on a drug [ pentoprazole] stomach disorder. Kindly help.

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