Why eight hours a night isn't enough, according to a leading sleep scientist

Some topics we cover: why 8.5 hours of sleep is the new eight hours; the genes that dictate if you’re a morning person or a night owl; why you should take a nap instead of meditating; how sleep deprivation can be a tool to fight depression; why sleep should be the new worker’s rights; and tips on how to get a better night’s rest (hint: it’s not your Fitbit).