This site suggests 'Japanese have a special ability to fall asleep anywhere at anytime' & crowd doesn't make much of a difference to them.
And if you are among those who are interested in learning new skills of sleeping in impossible places & positions then this is the best site which has got a lot to offer.
(Image source: Funhight).
And even after all this, if one needs to sleep at work then there is a solution to this too. Just close your eyes & stick the eyes stickers & fall asleep & relax yourself. Just in case if you are thinking otherwise, then perhaps you should stick to a cup of coffee.
(Image credit: Gayaruangkepelbagaian).
Kids are the best teachers in this:
(Image credit: Mytwogirls).
Here are some animals sleeping in their usual way:
(Image credit: 3quarksdaily).
The Lego World.
Art With Money.
Humor In Uniform.
Women's Soccer Teams.
Beautiful Railway Bridges From Around The World.