Relations between sleep quality and academic performance among Vietnamese high-school students.

Background: Impaired sleep quality and insomnia are important predictors of reduced life functioning. Among adolescents, an important domain affected by insomnia is academic achievement. Insomnia has multiple components, and understanding how different components are related to academic achievement is important, so interventions can be designed to most efficiently target insomnia components. The present study's purpose was to assess relations between different components of insomnia and academic functioning among high-school students in Vietnam, where academic achievement is highly valued and strongly emphasized for adolescents. Methods: Results: Canonical correlation analyses indicated a significant ( Conclusions: Study results suggest that evaluation of Sleep Extension Therapy (which increases sleep duration) for improving academic performance in high school students in countries similar to Vietnam may be useful. Moderator analyses results suggest that for younger high school students, future longitudinal research should investigate whether insomnia interventions should emphasize a direct focus on reducing related functional impairment because of younger students' apparent higher sensitivity to functional impairment. For older high school students, future research should also assess whether it may be beneficial to emphasize increasing sleep duration, to directly reduce cognitive impairment associated with insomnia.