https://blogs.mercola.com:443/sites/vitalvotes/archive/2017/05/23/air-pollution-linked-to-poor-sleep-study-finds.aspxResearchers believe that air pollution, particularly nitrogen dioxide and small particulates known as PM 2.5s may adversely affect your sleep. The report comes from five years of data collected in six U.S. cities, according to The Guardian . Even afterenCommunityServer 2008.5 SP1 (Debug Build: 31106.3070)