Abstract Introduction Sleep problems are germane to the majority of adolescents, but stigmatized youth may experience poorer sleep than those who have not experienced stigma. However, no prior studies have examined sleep among transgender adolescents (TGAs). Investigating these sleep disparities is critical, since low sleep duration and poor sleep quality are predictive of depressive symptoms and suicidality among adolescents, two mental health outcomes experienced disproportionately by TGAs. Using a nationwide survey of adolescents, we examined sleep duration, sleep quality, and rates of insufficient sleep among a sample of adolescents, and we compared those parameters between TGAs and cisgender adolescents (CGAs). Methods Adolescents (n=1784) ages 14-18 completed an anonymous survey including measures of sleep, sexual and gender identity, depressive symptoms, and demographic variables. Participants were grouped as TGA or CGA. Unadjusted associations between gender identity and sleep outcomes were examined, followed by multivariate regression models examining associations adjusted for demographics and depressive symptoms. Results TGAs reported sleeping fewer hours, higher odds of being a ‘poor sleeper’, and lower odds of getting the right amount of sleep and getting ‘enough sleep’ than CGAs. After adjusting for key demographic variables, TGAs were still more likely to report that they were poor sleepers and less likely to report getting enough sleep compared to CGAs. When adding depressive symptoms as a covariate, the finding that TGAs reported they got enough sleep less often than CGAs remained marginally significant. Conclusion Transgender adolescents reported receiving poorer sleep than cisgender adolescents. Future studies should focus on longitudinally examining the emergence of sleep problems among TGAs and CGAs, which may also serve to identify specific biopsychosocial pathways that contribute to heightened risk for sleep problems among TGAs. Sleep disparities may be a promising target for prevention and intervention programs to improve health outcomes among stigmatized youth. Support This study was funded by the University of Pittsburgh Central Research Development Fund through an award to Drs. Salk, Choukas-Bradley, and Thoma. Dr. Levenson was supported by grant K23HD087433. Dr. Thoma was supported by grants T32MH018951 and K01MH117142, Dr. Salk was supported by grant T32MH018269, and Dr. Hamilton was supported by grant T32HL082610.