What hath night to do with sleep? ~John Milton

Sleep is another of those human activities practiced world-wide! In Australia, sleep is mostly practiced at home, in private, with a few exceptions – sleeping on the beach or after a picnic in the park, sleeping anywhere after a big party, or in transport waiting rooms. In China, there is a tradition of sleeping between 12:00 midday and 2:00pm.  And sleepers manage to do this, anywhere, anyhow.