( CNN ) New survey tracks Americans ' mobile phone habits and Facebook use . Score: 6 Peak Facebook use is in the evenings just before bedtime . Survey also found 50 % of users admit to checking Facebook while at a movie .
New survey tracks Americans ' mobile phone habits and Facebook use . Score: 6 Peak Facebook use is in the evenings just before bedtime . Survey also found 50 % of users admit to checking Facebook while at a movie .