Sleep Math 

--The method of calculating on your fingers the possible number of hours you can sleep after being up later than you wanted.--

Sleep Math is usually only done when you know you have to get up early, wished you could just sleep in, and are stressing because you're afraid you might not get enough sleep.

With a normal, not exhausted brain, you could probably do this math in your head. However, since you are tired you have to go back to how you did math as a child, counting on fingers.

(Couple intended to go to bed 'early' this particular night, and instead, stayed up way late talking & watching old episodes of The Sopranos.)

After finally brushing teeth and getting ready for bed, girl notices guy using his fingers to count something, like this 30+ man is all of sudden a 5 year old--

Girl to Guy--"You must be doing Sleep Math"

Sleep Math by M circled and M3 May 21, 2011

Sheep-and-Wolves Math 

Provocative or subversive math questions set by allegedly mean or wicked educators in Hong Kong, whose aim is to brainwash students, by sowing the "seed of instability" in the once-democratically free colonial city and across totalitarian China.

A middle school teacher in Xinjiang was sent to a reeducation camp for two years after he’s found guilty of setting some sheep-and-wolves math questions, one of which is the following: “In a village, a pack of eight wolves have encircled a pen that encloses a hundred and ten sheep. Guesstimate how many sheep could lose their lives before the shepherd and his two assistants arrived on the scene to rescue his flock.”

Sheep-and-Wolves Math by Fasters September 10, 2022

sleepathon 

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.

sleepathon by desjardins January 6, 2009