You probably already know you need at least seven hours of sleep a night to function at your best. (And don't say, "Not me. I do just fine on five or six hours. According to a study published in Cell Research, only a tiny fraction of the population functions well on less than seven hours.)
Why? A 2018 study published in Sleep says if you only sleep for five to six hours, you're 19 percent less productive than people who regularly sleep for seven to eight hours. If you only sleep five hours a night? You're nearly 30 percent less productive.
That's especially true for entrepreneurs: A study published in Entrepreneurship Theory and Practice found that lack of sleep makes people more likely to start a business on impulse or whim ather than on a solid, well-considered idea. More broadly, a study published in Journal of Business Venturing found lack of sleep causes you to come up with worse ideas.
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