The new Sleep Calculator for Kids aims to help parents figure out the best bedtime for the children, according to the Daily Mail.

What’s the secret of you child making up in a good mood every morning? According to experts the trick is finding their ideal bedtime.

And now every parent can discover that elusive perfect moment to send their kids off to dreamland using a simple new online calculator.

By entering a child’s age and the time they need to wake up, the Sleep Calculator for Kids – for children aged four to 18 – determines the best time for them to turn lights out.

And despite the common wisdom, earlier is not always better if it means they wake up at the wrong moment of the sleep cycle.

The premise of the calculator is that children feel happier and more energised if they wake up in-between sleep cycles rather than during deep sleep.

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