Today, Americans are getting far less sleep on average than they did back in the 1940s! So, do the most successful people sleep less? There's really know clear trend, but millionaires like Howard Schultz, Martha Stewart, Jeff Bezos, Bob Iger, and Tim Cook all wake up before 5 a.m. each day. Then, you have the Rock, who has gone from the world of wrestling to become the highest paid movie star in the world. With a net worth of $190 million, Dwayne "The Rock" Johnson typically only gets between three and five hours of sleep each night!

Infographic by: sleepopolis.com