The amount of time college students spend using Facebook and other social websites has no impact on the amount of sleep they get each night.  That's the finding of a University of New Hampshire study involving more than 12-hundred UNH students.  Students were questioned about their sleep habits with light sleepers defined as those who sleep seven hours or less each night. 

Light users of social Internet sites are those visiting Facebook, Twitter and other networks for 31 or fewer minutes per day and heavy users those who spent more than 60 minutes online.  Researchers found 60-percent of heavy social media users and an identical 60-percent of light social media users report they're light sleepers.  Those who spend more than 60 minutes a day visiting social networks are just as likely to sleep seven or fewer hours. Your keyword is "social"