Written by Dr. Anitha Paderla, MBBS | 
Medically Reviewed by dr. reeja tharu / dr. sunil shroff, MBBS, MS, FRCS (UK), D. Urol (Lond) on Apr 19, 2013


The symptoms of Idiopathic hypersomnia are long lasting while those of Kleine-Levin Syndrome improve or disappear with the onset of adult hood.

Idiopathic hypersomnia is a life-long disorder that does not disappear spontaneously. Consequences of this disease are mostly social and professional in nature. Severe idiopathic hypersomnia is a disabling condition that responds poorly to medical treatment and often leads to permanent unemployment.

The symptoms of Kleine-Levin Syndrome appear to be benign and do not have an impact on intellectual or physical function. Symptoms usually improve or disappear with advancing age.


  1. Primary Hypersomnia - (http://www.emedicine.com/med/topic3129.htm)
  2. Hypersomnia - (http://www.sleepdisordersguide.com/hypersomnia.html)

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