hypersomnia
  1. Excessive sleeping.
  2. A dyssomnia consisisting of prolonged or daytime sleep episodes occurring almost daily.  The hypersomnia is called primary if it is not related to another mental disorder, if it is not substance induced, and it is not due to a general medical condition.
    Source: Edgerton, Jane E. 1994. American Psychiatric Glossary, 7th Edition. Washington, DC: American Psychiatric Press










   

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