The researchers tracked the sleep patterns of 547 children, ages 7 to 9, for one week. They undertook the current study to determine whether differences in effortful control could influence sleep following bedtime media use. The authors wanted to examine whether this association varied according to children’s characteristics. Previous studies have associated children’s and adolescents’ electronic media use near bedtime with differences in sleep quantity, quality, and timing. The study was conducted by Kathryn Lemery-Chalfant, Ph.D., of Arizona State University, and colleagues. In contrast, bedtime screen use was not associated with sleep reduction in children who scored high in effortful control.Īlthough it is possible to help children develop their effortful control, the researchers say that it would be more productive to help establish good screen habits and sleep routines before adolescence, when parents begin to have less influence over their children’s sleep habits. Nighttime electronic media use was linked to less sleep in children who scored lower on a measure of effortful control-the ability to override inappropriate impulses, focus attention, and complete difficult tasks. Screen time before bed may affect kids differently, depending on whether they have a particular personality trait, suggests a study funded by the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD).
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