Singer Vlad Topalov and model Victoria Lopyreva wear creations by designer YanaStasia on day 5 of the Mercedes-Benz Fashion Week Russia Fall/Winter 2011/2012 at the Congress Hall on April 4, 2011 in Moscow, Russia. (Photo by Pascal Le Segretain/Getty Images)

Models pose backstage ahead of the Review of Australian Fashion Week show as part of Mercedes Benz Fashion Festival Sydney 2011 at Sydney Town Hall on August 24, 2011 in Sydney, Australia. (Photo by Lisa Maree Williams/Getty Images)

A model walks the runway in the Maria Escote fashion show during the Mercedes-Benz Fashion Week Madrid Autumn/Winter 2012 at Ifema on February 4, 2012 in Madrid, Spain. (Photo by Carlos Alvarez/Getty Images)

People look at sharks from an underwater room structure installed in the Aquarium of Paris, France, March 14, 2016. Airbnb and the Aquarium of Paris offer contest winners a night underwater sleeping with sharks and create a research platform for “misunderstood” shark species. (Photo by Charles Platiau/Reuters)

Sleeping Baby Bunny. A 6 day old baby bunny with mouth open while sleeping =D. Photo by Crezalyn Nerona Uratsuji

Yang Juan, an employee at Goopal Group, takes a nap in her seat after lunch, in Beijing, China, April 21, 2016. Office workers sleeping on the job is a common sight in China, where a surplus of cheap labour can lead to downtime at work. But in China's technology sector, where business is growing faster than many start-up firms can hire new staff, workers burn the midnight oil to meet deadlines and compete with their rivals. Some companies provide sleeping areas and beds for workers to rest during late nights. (Photo by Jason Lee/Reuters)