The Sleep Clinic at Papworth Hospital, Cambridge sees over 3000 bizarre and extreme sleep disorder cases a year. Night vision cameras give us a rare glimpse of the most extraordinary nocturnal human behaviour as we follow their trickiest cases through their night studies. Today we meet Jody and Malcolm. Jody wakes 5 and 6 times a night following galloping ponies or fleeing from the ghouls chasing her, much to her boyfriend Jim's bewilderment. And the sleep team have to reveal the truth of Malcolm's nocturnal howling, rowing, weight lifting and night time chattering to his baffled wife, Shirley.