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

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 ...