Kids may not love going to bed -- but establishing a consistent bedtime may be important to their brain power!
British researchers analyzed results of a long-term study of more than 11-thousand seven year olds.
Irregular bedtimes were most common around age 3 -- and appeared to increase the likelihood for lower test scores in reading and math by age 7.
The problem was significant in girls who didn't have regular bedtimes at ages 3, 5 and 7.
Doctors say the inconsistent sleep could undermine the brain's ability to acquire and retain information.