Tourists attend a pillow run activity to call for healthy sleep at a scenic area in southwest China's Chongqing Municipality, March 20, 2017, one day ahead of the World Sleep Day. (Xinhua/Tang Yi)
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Tourists attend a pillow run activity to call for healthy sleep at a scenic area in southwest China's Chongqing Municipality, March 20, 2017, one day ahead of the World Sleep Day. (Xinhua/Tang Yi)
