One in five schoolchildren wakes up in the night to look at social media, a new study has warned. Academics in Cardiff found that youngsters aged between 12 and 15 will get up at least once a week on a school night to check sites such as Twitter and Facebook. And, unsurprisingly, more than half of those reaching for their smartphones when they should be fast asleep said they were "almost always" tired in classes the next day.
Call For More Ethnic Diversity In Kids' Books: Authors and novelists are calling for more black and mixed ethnicity characters in children's literature. Children's Laureate Malorie Blackman tells Sky News youngsters may be put off reading because there are too few black characters. #WeNeedDiverseBooks