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An occasion on which sleep lasts significantly more than 8 hours.

Antonym: no sleepathon - an event where sleep is deprived beyond standard 16 hours.
Shaniqua enjoyed a 15 hour sleepathon with the help of her extra-strength pain killer.

Antonym: Shaniqua endured a 48 hour no sleepathon on a business trip.
by desjardins November 29, 2007
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