Did you know J. S. Bach's Goldberg Variations were originally written to help alleviate a nobleman's insomnia? Knowing few bounds, music is well placed to invoke lullabies, the onset of sleep, and its otherworldly, dreamy state. Nightmares add the yang to the yin. This episode spotlights musical works about various stages of somnolence. If you fancy a bit of music for simply day-dreaming, this is the episode for you.