| Not yet recruiting | N/A | 140 | Europe | SLEEPAC | Christin Lang, Department of Sport, Exercise, and Health, University of Basel, University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University Children's Hospital of Basel, Psychiatry Baselland | Mental Disorder in Adolescence, Insomnia, Delayed Sleep-Wake Phase Disorder | 05/26 | 06/26 | | |