Any entrepreneur will tell you the importance of long hours. In fact, most will tell you it's impossible to succeed without working from (very) early in the morning until (very) late at night.

But we are all well aware of the recommended eight hours. It's also known that a lack of sleep affects productivity, however.

So what are entrepreneurs to do? has put together this handy infographic to help you.

11 Sleep Hacks Every Entrepreneur Needs To Know