Jeff Bezos explains why getting 8 hours of sleep is key to making important decisions in the workplace

Amy Harris/AP Photos Jef Bezos said he makes sure to get 8 hours of sleep every night, explaining that he doesn't want to risk making poor executive decisions because he's "tired or grouchy." The Amazon CEO also said he will only take on "mentally challenging" discussions and decisions before lunch – otherwise he leaves it for the next morning. To ensure he's not "tired or grouchy" when making important decisions, Jeff Bezos says he makes an effort to get at least 8 hours of sleep every night....