How you sleep can determine the success of your day.

While most people need a solid eight hours to feel rested and refreshed, others like Tony Robbins and American DJ Steve Aoki reportedly get by on only three to four hours of sleep a night.

Either way, if you’re not getting the sleep your body needs it can impact your productivity, and worse, your health.

Online Mattress Review has created an infographic with interesting information about how our sleeping patterns have changed over time, and other fun facts such as the ancient Egyptians feared sleep because they believed it to be a state close to death.

Check out the infographic below.

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