Two surveys separated by almost a decade reveal the inexorable decline in sleep time in teens: Results of the National survey of middle and high schools in adolescents on health and substances (EnCLASS 2018), and the evolution since 2010. - Léger, Damien; Ehlinger, Virginie; Spilka, Stanislas; Le-Nézet, Olivier; Fauroux, Brigitte; Pitron, Victor; Godeau, Emmanuelle (PLoS ONE, 2025)