Bed-jumping, the newest craze to hit the web, has seen hundreds of people post images of themselves jumping on beds on a blog hosted by a hotel review site.
Each more extreme and creative than the last, the photographs and videos on hotelsbycity.net show hotel guests using their beds as a trampoline.
Internet craze: Two hotel guests strike Superman poses as they bed-jump in their room
One shows a couple jumping simultaneously in 'Superman' poses, while another appears to be speaking on the telephone and reading a newspaper in mid-air above his bed.The site's creators describe the activity as 'completely intoxicating'.
It reads: 'BedJump is all about creating an exciting and entertaining hotel space. Our mission is to ensure that all the content on the site comes from you - real hotel guests. We love your images, and thousands of viewers every day love them too.'
High on life: A man appears to speak on the telephone and read a newspaper in mid-air above his bed
High five: An Australian aerobics team warm up ahead of the National Championships in Adelaide
Fans of the new sport count an aerobics team from Australia, who posted a large number of pictures during a trip to Adelaide to compete in the National Aerobics Championships.A member of the team said: 'We used bed jumping as part of our pre-competition preparation - and also as part of the celebrations after we won!'
Ommm: A hotel guest appears to meditate while bed-jumping
Lighting up: A bed-jumper looks like he is levitating with a lamp, so as to shed light on his friends
Puppy love: A bed-jumper ensures his pet dog doesn't miss out on the fun
Action scene: Four bed-jumpers use a pair of beds for an impressive group shot
Sweet dreams: One fan pretends to sleep as he bed-jumps in his hotel room