Balancing Nighttime Sleep and Midday Naps: The Role of a Biphasic Sleep in Chinese Adolescents’ Academic Performance and Health

Ning Ma, Tian Xie, Center for Studies of Psychological Application, Center for Sleep Research, Guangdong Key Laboratory of Mental Health and Cognitive Science, School of Psychology, South China Normal University, Philosophy and Social Science Laboratory of Reading and Development in Children and Adolescents, Ministry of Education, South China Normal University

The Journal of Early Adolescence

Published online on May 08, 2026

Abstract

The Journal of Early Adolescence, Ahead of Print.
This study examined how daily sleep allocation—nighttime sleep and midday nap duration—influences adolescents’ academic performance and physical health, with a focus on gender differences. A school-based survey was conducted among Chinese adolescents aged ...