It may seem like common sense that inadequate sleep can have a negative impact on a child’s development, and a new study has confirmed the belief. The research by the University College London found a link between the regularity of bedtimes and cognitive development in kids.

The study’s results showed that three-year-olds who went to bed at a regular time each night achieved better scores on cognitive tests administered four years later than those children who went to sleep at erratic times.


The study included other factors such as late bedtimes and late risers, but the significant trend seemed to be the existence of a regular bedtime rather than at what time this bedtime was set.

Amanda Sacker, a co-author of the study, said that she was surprised when the test scores showed that the children with later bedtimes weren’t negatively affected. The message to parents it seems is that a consistent bedtime, even a slightly later one, will be good for the development and health of your child.