A new study out of Rutgers University found that students who didn’t text anymore after lights out or less than 30 minutes after turning off the lights significantly performed better in school, compared to those who stayed up late more than 30 minutes after turning off lights to continue texting:
http://www.sciencedaily.com/releases/2016/01/160126162227.htm
http://www.parentherald.com/articles/17771/20160126/night-texting-affects-teenagers-grades-study.htm
