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NEW YORK, NY - FEBRUARY 11:  Arianna Huffington, Editor-in-Chief of the Huffington Post, attends an event promoting the London tech industry with the Mayor of London, Boris Johnson, on February 11, 2015 in New York City. The event is part of Johnson's visit to the United States, where he is visiting Boston, New York and Washington D.C.  (Photo by Andrew Burton/Getty Images)
NEW YORK, NY - FEBRUARY 11:  Arianna Huffington, Editor-in-Chief of the Huffington Post, attends an event promoting the London tech industry with the Mayor of London, Boris Johnson, on February 11, 2015 in New York City. The event is part of Johnson's visit to the United States, where he is visiting Boston, New York and Washington D.C.  (Photo by Andrew Burton/Getty Images)

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The founder of the Huffington Post is on a personal crusade to end our sleep crisis, which leaves around 40% people sleep deprived.

Arianna Huffington says we need more sleep

The founder of the Huffington Post is on a personal crusade to end our sleep crisis, which leaves around 40% people sleep deprived.