Location, Location, Location
The best site to explore (or to learn this useful skill) is Sleeping Chinese. It’s a constantly growing collection of impossible sleeping positions:
Ignore the crowds
According to this site, Japan’s Public Sleeping is a constantly evolving art:
Schools are made for sleeping
Studying obviously leads to extreme mental and physical fatigue:
Learn from kids
Let’s see if I can fit on the stair. Oh, this is comfortable! Maybe I should just… zzz
Maybe he thought he could hear better up there.
Sleeps in her highchair!
This guy was sound asleep in the bookstore, curled up into this strange contortion.
Someone sign this kid up for gymnastics. Olympic gold in 2020, here we come!
Of course, children are "professional" sleepers:
Cats have no competition, though.