A sleepover at the zoo?! How much fun does that sound? Liz Bonin takes on this very ambitious experiment, where herself and sleep expert Bryson Voirin spend a night at Bristol Zoo, comparing and contrasting sleep patterns of animals. They use approximately 30 night-vision cameras and 20 infra-red motion sensors to closely monitor the animals. The creatures range from red pandas, dolphins, and lions to meerkats, tapirs and ants. Be pretty cute as well to see all that lot sleeping, well except for the ants, not sure how that would go to be honest.