A neurological disorder in which there is a sudden recurrent uncontrollable compulsion to sleep. Excessive daytime sleepiness is also known as narcolepsy. The condition is often associated with: Cataplexy -- a sudden loss of muscle tone and paralysis of voluntary muscles associated with a strong emotion Sleep paralysis -- immobility of the body tha [..]

Excessive daytime sleepiness (EDS) is a condition where you constantly feel tired during the day, and generally lack energy, even though you might feel you have had enough sleep.