Research shows that early risers are more successful, more proactive, better planners, and better at anticipating problems. Not to mention that many uber-successful people also get to the office uber-early. Vogue editor-in-chief Anna Wintour is out of bed by 5:45 a.m., GE CEO Jeff Immelt gets up at 5:30 a.m., Xerox CEO Ursula Burns rises at 5:15 a.m., and Apple CEO Tim Cook sets his alarm for as early as 3:45 a.m. to get a jump start on their days.