High-intensity activity 2 hours before sleepποΈHigh-intensity activity 2 hours before sleepHigh ImpactWatching TV in the eveningπΊWatching TV in the eveningHigh ImpactSocial Media in Bed.π±Social Media in Bed.High ImpactBright (especially blue) light in the eveningπ‘Bright (especially blue) light in the eveningHigh ImpactAlcoholπ·AlcoholHigh ImpactNoisy environment & sleep. πNoisy environment & sleep. Medium ImpactHigh body temperatureπ‘οΈHigh body temperatureMedium Impact