Recent data from French families shows that most digital exposure for children aged 9 to 11 occurs in their bedrooms, where they are not directly supervised by parents. According to Public Health France, nearly 29% of children in this age group have a personal screen in their room, with an average daily screen time of 2 hours and 33 minutes. On days when they are not at school, this time increases to over 3 hours and 30 minutes. The presence of personal screens in bedrooms allows easy access to social networks, which 25% of children in this age group use. Among them, 30% are girls who begin using these platforms at a younger age. The availability of screens in bedrooms is closely linked to social and educational background. Children from families with less education are more likely to have a personal screen in their room—40.2% compared to 19.5% in more educated households. Additionally, 72% of children from less educated families spend over an hour daily on screens, compared to 35% in more privileged households. This growing digital divide mirrors existing inequalities in child health, raising concerns among public health experts. The shift in screen use from shared family spaces to private bedrooms is a significant issue for public health specialists. Screen time increases as children grow older, from about 1 hour and 22 minutes per day for 3- to 5-year-olds to 1 hour and 53 minutes for 6- to 8-year-olds, and reaching 2 hours and 33 minutes for 9- to 11-year-olds. When children use personal devices in their bedrooms, it changes the way parents can monitor and control their screen time. This often happens at night, making it difficult to track and regulate effectively. Usage patterns also differ by gender. Boys tend to prefer video game consoles, while girls begin using smartphones at a younger age and use them more frequently, starting around 9 years old. More than half of 9- to 11-year-olds exceed the recommended daily screen time, with 55% spending more than two hours in front of a screen. The presence of a personal screen in a bedroom has become a distinct factor in child development, separate from the total time spent consuming digital content. Public Health France is calling for targeted prevention efforts aimed at the most vulnerable populations, starting with the youngest children, to reduce existing health inequalities. This data will support an upcoming awareness campaign, highlighting that the issue is not just a family concern but a broader public health challenge. As daylight hours decrease and more time is spent indoors, attention should be given to what happens behind closed doors in children's bedrooms, rather than simply focusing on banning tablets in living rooms.