The Cities That Never Sleep

The answer to the question "Did you sleep well?" may depend on where you live. According to "Sleep in the City," a study that ranks the 50 most populous U.S. metropolitan areas according to whose residents sleep best, Minneapolis tops the list, reporting 23 nights of good sleep a month. The country's most fitful sleepers hail from Detroit, with Cleveland and Nashville close behind. (See TIME.com/sleep for the full list.)