Ключевые слова: addiction, awake, bed, bedtime, caucasian, child, childhood, comfort, comfortably, communication, darkness, daughter, device, digital, ebook, education, ereader, face, female, girl, home, insomnia, internet, kid, lifestyle, light, lit, looking, lying, mobile, notebook, people, person, phone, pillow, playing, preschooler, reading, sleepless, smartphone, tablet, technology, watching,