To sleep properly, young people need uninterrupted sleep where possible.
Electronic devices in the bedroom and lighted screens energise. It is recommended that all are switched off at least one hour before you are trying to get to sleep.
Young people who are in contact with others late at night are not resting and in many cases are not doing the sort of activities that will help their state of mind or studies the next day.
Sleepy children are more likely to make decisions that put them at risk of being groomed.
Research from Cambridge University suggests that fourteen year olds who spend an hour a day above the 3 hour average on screens during their leisure time score 9 fewer points at GCSE when the sum of their grades are calculated (equivalent of dropping two grades from a B to a D or from a 6 to a 3).
Young people who spend a lot of time on their phone and on social networking sites are not engaged in normal family life.