Study: Irregular bedtimes for kids affect test scores

File photo of a sleeping child.

July 10, 2013 8:31:26 AM PDT
Consistent bedtimes for children may be linked to better performance on intellectual tests, according to a study.

Researchers looked at bedtimes and standardized test scores for more than 11,000 children.

They noted that going to bed late did not affect a child's development, but irregular bedtimes were linked to poor scores.

Researchers caution the study simply draws a correlation and is not proof that irregular sleep is a direct driver of lower test scores.

The study is published in the Journal of Epidemiology and Community Health.