Thousands of people are taking part in the biggest bed-jump in history as they bounce from Shanghai-Paris-London-New York on four of the worldâs biggest beds. Over 20,000 people are expected to jump on the giant beds for over 16 hours to set the record for the worldâs biggest bed-jump. The event marks the launch of IHGâs (InterContinental Hotels Group) biggest free nights offer, which sees over five million hotel rooms being given away across the groupâs 4,000 hotels in over 100 countries.