Sleeping studios—like Nap York in NYC, where guests can power nap for $15—might be an answer to productivity slumps during the work day. “They provide an optimized environment for sleep, from cool temperatures to total darkness to quiet,” Christopher Winter, M.D., president of Charlottesville Neurology and Sleep Medicine in Virginia, explains to the WSJ. The result is brief, high-quality sleep. Such resting locations have already popped up in Los Angeles, Washington DC, Dallas, London and Madrid. They offer everything from ergonomic cocoons to eye masks. Learn more about these centers at the WSJ.