Simply Sleep-Tylenol Nigthtime Sleep Aid is a non-habit forming sleep medicine with nothing more than what helps you sleep. It's for those nights when you simply want to sleep. While everyone has different sleep needs, the National Sleep Foundation recommends that most people get 8 hours of sleep per night. And it's not just the number of hours that count-it's also the quality of the sleep. Simply Sleep helps you achieve both the right quality and quantity of sleep.