Irregular Sleep Hurts Preschooler Brain Power

Irregular sleep patterns in preschoolers are linked to decreased cognitive abilities, particularly in areas of vocabulary and memory, according to a recent study. Researchers found that children with less consistent sleep schedules performed worse on verbal and memory tests, even when accounting for the total amount of sleep they received.

These findings underscore the growing body of evidence suggesting that sleep regularity is a critical factor in healthy child development, alongside sleep duration. The study involved 379 preschoolers with an average age of 4, whose sleep patterns and cognitive skills were assessed. While executive attention was not significantly related to sleep variability in this group, the study suggests that not all cognitive outcomes are equally affected.

Further research is recommended to fully understand the complex relationship between sleep variability and cognitive health across various age groups and demographics. The findings were presented at a meeting of the American Academy of Sleep Medicine and the Sleep Research Society.