Health Smartphone use before bed suppresses melatonin and disrupts sleep by Dr Natalie Singh - Health Editor April 19, 2026 by Dr Natalie Singh - Health Editor April 19, 2026 Using a smartphone in bed before sleep disrupts melatonin production and delays the onset of restorative sleep, according to a study cited in a Gujarati-language health report. Blue light from … 0 FacebookTwitterPinterestEmail