A new study in the Canadian Paediatric Society found that 70% of children have trouble sleeping, reports CBCNews.

The Ontario study surveyed parents of 350 children between the ages of one to 10 who came into the emergency department.

The parents were asked about their children’s sleep problems and whether they medicate them for it.

“It’s pretty high, 70 per cent,” said Wendy Hall, a nursing professor and a University of British Columbia researcher.