Relationship between smartphone use and sleep outcomes is complex and might be not as detrimental as claimed in some earlier studies. Smartphone use within 2 h before sleep may not be harmful to adolescents’ sleep when compared to other media use in the evening.

Relationship between smartphone use and sleep outcomes is complex and might be not as detrimental as claimed in some earlier studies. Smartphone use within 2 h before sleep may not be harmful to adolescents’ sleep when compared to other media use in the evening.