A World of Slumber

Whether sleep happens in a hammock or tent, under the stars or in a bed, the need for it is universal

SLEEPING ON THE JOB An onion vendor at a vegetable market in China’s Shanxi province makes good use of his time while waiting for customers.

CLOSE QUARTERS Tommy Caldwell, on the ropes, and Kevin Jorgeson spent 18 nights on the Dawn Wall of El Capitan in Yosemite National Park before the first climbers to complete a free climb of the wall.

Sisters snuggle up in Miami.

BABY BLANKETS A young child sleeps in a market stall in Cusco, Peru, presumably as family members work nearby.

EXPOSED A man takes a nap on the street in Calcutta, India, next to his rickshaw

A Sami reindeer herder named Nils Peder Gaup spends the night in a tent called a lavut on the mountainous tundra of northern Norway, some 200 miles above the Arctic Circle, where he says he feels most at home.

SWEET DREAMS Like other 10-year-olds, Maya, of Brooklyn, N.Y., needs plenty of sleep every night.

MISSING OUT A toddler sleeps as other family members watch live coverage of Pope Francis’s first visit to the Philippines, Asia’s largest Catholic nation, during his tour of Manila to see the destruction of Typhoon Haiyan.