Sleep and test scores: is there a connection?

A new study has concluded that there is an optimum amount of time for children and young people to sleep in terms of how well they perform in school, and more is not necessarily better. The research, published in the Eastern Economic Journal, used data from 1,724 elementary and secondary students to explore the relationship between sleep and performance on standardized tests. Findings showed a statistically significant relationship between the two, with the most beneficial amount of time varying by age. This ranged from 9-9.5 hours for 10-year-olds to 7 hours for 16-year-olds.