So if you sing the same song or play the same tune as part of a bedtime routine, that's so incredibly powerful, because even if a baby isn't that tired, if the lullaby is familiar to them ...

soul icon Gregory Porter is singing the first ever CBeebies bedtime lullaby with a soothing version of Moon River. The oldest lullaby on record, from Babylonia, was called Little baby in the dark ...

Singing to your little one can become part of your nightly bedtime routine – or a way to help your tired or stressed baby ...