Hypersomnia is common public health problem . Several causes of excessive sleepiness range from insomnia to obstructive sleep apnea. Excessive sleepiness can be debilitating symptom

.The impact on cognition, work , family and social life is significant. Serious effects like accidents put public safety under scrutiny. There are physiological and legal implications of this problem.

Negative impact on socio occupational life can be prevented by treatment.