Sleep experts warn against rising too early if you’re not naturally a morning person, and provide other tips for a better night’s sleep.

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” ...

Add Yahoo as a preferred source to see more of our stories on Google. Kevin O’Leary, the Canadian businessman and investor from “Shark Tank,” disclosed his daily routine, including his unique sleep ...