Background: Sleep quality plays a crucial role in children's physical and mental health. Prior research has documented that parenting styles are closely associated with children's sleep quality. However, the psychological processes underlying this relationship are less investigated. Objective: Based on parental acceptance-rejection theory and the psychobiological inhibition model of insomnia, the current study aimed to examine the mediating roles of mindfulness and loneliness in the associations between parenting styles (i.e., parental warmth a...