Chatted to dream researcher Caroline Horton for a feature on scientists who work at night for The Observer. Heard about how dreaming is linked to memory, why we have nightmares and whether cheese really does give you strange dreams….

Chatted to dream researcher Caroline Horton for a feature on scientists who work at night for The Observer. Heard about how dreaming is linked to memory, why we have nightmares and whether cheese really does give you strange dreams….