Every night, Thomas or Amy drag you out of bed: "Mummy, nightmare! There's a monster under my bed...". However much you explain that no, there's no monster, the imaginary beast is disrupting everyone's sleep.

We take a look at the mechanism of nightmares and how they unfold in order to learn how to help your child overcome an unpleasant episode.

Finally, learn to recognise night terrors and find out how to react when they occur.