Most adults will be familiar with the vicious circle of worry, sleeplessness and then more worrying.
But now, a lack of sleep in children has also been shown to go hand in hand with difficulties in coping.
One in three youngsters gets less sleep than the recommended nine hours, it added.
Not sleeping for long enough means they’re less able to cope with these concerns, said Place2Be, which specialises in counselling and mental health support in schools.
“At least three children in every class have a diagnosable mental health issue, and many more worry about everyday concerns from exams to family life,” said Catherine Roche, the charity’s chief executive. “Place2Be is supporting teachers and parents with advice on how sensible sleep habits, eating well and exercise help children cope with daily worries. However, further research is needed to explore if children are lacking sleep because they worry, or worry because they aren’t getting enough sleep.”