TED Talks In this short talk, Arianna Huffington shares a small idea that can awaken much bigger ones: the power of a good night's sleep. Instead of bragging about our sleep deficits, she urges us to shut our eyes and see the big picture: We can sleep our way to increased productivity and happiness 

Fonte : http://www.ted.com/talks/arianna_huffington_how_to_succeed_get_more_sleep.html