Your bedtime routine — aka the things you do before bed — has a pretty big impact on your sleep. To tell your brain it's almost time for bed, try a bath, soft music, aromatherapy, or gentle yoga.

But there is a chart doing the rounds that gives suggested bedtimes depending on age - and it's causing quite the debate. It varies from a two-year-old going to bed at 7pm to an 18-year-old's ...

CINCINNATI (WKRC/AP) - While some kids have already returned to classrooms, many students will go back to school in the coming weeks. And with that comes a return to a "normal" bedtime routine.

How long that bedtime ritual can take is anyone's guess. But there is a chart doing the rounds that gives suggested bedtimes depending on age - and it's causing quite the debate.