8)Sleeping routine of some of the world's most sucessful people

Facebook's darling billionaire Mark Zuckerberg awakes at 8am, sometimes later if he stayed up late chatting with programmers. Zuckerberg is a prime example of making it big without being a morning person.

A strong proponent of the 8-hour circadian rhythm, billionaire Jeff Bezos avoids morning meetings to eat a healthy breakfast with his wife and kids. "I just feel so much better all day long if I've had eight hours," he said.

Microsoft founder and philanthropist Bill Gates emphasizes the importance of at least 7 hours of sleep to be creative. In 1997, he confessed an envy of short sleepers, who had "so much more time to learn, work, and play," but apparently it didn't stop him. (Who knows, maybe he would've run for president with the extra time).

SpaceX and Tesla visionary Elon Musk said in an interview that his mental acuity drops at a certain threshold of sleep. He strives for an average of 6-6.5 hours a night.

Sleeping less than 8 hours each night didn't quite work for Huffington Post founder Arianna Huffington, who collapsed from sleep deprivation due to 18-hour work days. Since the incident, she has become an outspoken champion of healthy sleep practices.

Dual CEO of Twitter and Square Jack Dorsey tersely described his morning routine in a Product Hunt AMA: "Up at 5 am meditate for 30, 7 minute workout times 3, make coffee, check in. I sleep from 11pm-5 am usually. Blackout shades help. Meditation and exercise!" #neet #iit #sleepforsuccess