'Shark Tank' star Lori Greiner doesn’t believe in a 5 a.m. wake-up call: 'Waking up early doesn’t give you more time. It simply shifts your schedule'

(Credit: Getty Images—Chris Haston/WBTV)

It seems like the most successful and ambitious people in the world wake up before everyone else does. They start their days early—often before the sun even rises. 

But Lori Greiner, the “Queen of QVC” and Shark Tank star says it’s not really necessary to wake up early to get everything done.