Getting enough sleep is central to living your best life—from staying safe on the road to being productive on the job. Adults typically need seven to nine hours a night, but for about 40 percent of Americans, that much shuteye is an elusive goal. The average is more like 6.8 hours—12 minutes shy of the minimum recommendation. A difference of just 12 minutes a night may not seem like a lot, but over time those minutes can add up to a huge sleep debt (especially if you really need eight or nine hours). Over time those deficits can take a toll on your health, too, raising your risk of weight gain, diabetes, heart disease, and memory loss….