Watch: Collective Siesta in Mexico City Aims to Promote the Right to Sleep

In one of Mexico City's busiest neighborhoods on Friday, about 200 people took a collective nap in the middle of the street to celebrate World Sleep Day.

Lying in the heat on synthetic mats, their necks resting on pillows and their eyes covered by masks, participants tuned out the chaos of Mexico's capital as part of what organizers described as "a peaceful demonstration for the right to sleep."