Part 1 of 2: A Night of Slumber Revealed

Prick up your ears and eyelids and listen in. Despite over 100 years of theory and research, no-one knows exactly why we need to sleep and dream yet we know we can't survive without precious slumber. Why? Join BBC radio broadcaster Claudia Hammond as she's wired up in a sleep clinic to reveal the inner workings of her own sleepy brain, and yours too. NOTE: The transcript or podcast won't be available because of copyright reasons. Instead enjoy The Dancing Mind as this week's podcast, from our archives. Click here...