The study, published in Sleep Health: Journal of the National Sleep Foundation, analyzed more than 10,000 adolescents between ages 12 and 13. As they aged within that one-year window, they became more likely to watch videos, check social media, or text while in bed. About one in four teens reported being woken up by calls, texts, or emails, and many admitted to picking up their devices again after waking. Black, Latino, and Native American teens reported more bedtime screen use than White peers, even when accounting for family income and education. Sexual minority teens reported higher screen use, though it was not tied to worse sleep outcomes, suggesting online spaces may provide important social support.