Shattered was filmed in a specially constructed "laboratory" inside an abandoned shopping centre in
Wapping.'''' The ten participants selected for the show were aged between 19 and 33, with one eliminated each night until the "sleep-off". They were initially kept awake for 36 hours, with a two-hour nap permitted before the live first episode.
You Snooze You Lose Every day a contestant was chosen by their peers to endure an hour-long "You Snooze You Lose" challenge, in which the chosen contestant was tasked with remaining awake through an experience intended to encourage them to fall asleep. These challenges included cuddling teddy bears, listening to a
bedtime story in an overheated room, and
watching paint dry while seated in a comfortable chair.
The Sleep-Off On the final day the contestants were sent to bed, with the last to fall asleep winning. The show reported that Jonathan Wood and Chris Wandel fell asleep within 15 minutes while Clare Southern continued to stay awake for nearly two hours, until producers intervened. She endured 178 hours of sleep deprivation, and won £97,000 in prize money. ==Health effects==