Preschooler Bedtime Media Use and Sleep Quality Are Both Uniquely Associated with Temperamental Anger/Frustration

This study (N=265) indicates that poor sleep quality (B = .37) and higher frequency of bedtime media use (B = .04) by preschoolers contribute to more expressions of anger/frustration. Association between bedtime media use and anger/frustration was more pronounced in girls. These findings support the use of screen-free bedtime routines.