Hypersomnia is a topic covered in the Diagnosaurus.

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Don’t miss

  • Sleep apnea


  • Insomnia of any cause limiting night-time sleep
  • Inadequate sleep time (lifestyle)
  • Sleep apnea
  • Narcolepsy
  • Primary insomnia (primary CNS hypersomnolence)
  • Drugs, eg, sedatives, opiates
  • Depression
  • Hypothyroidism
  • Kleine-Levin syndrome

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Last updated: February 24, 2015