With melatonin overdoses among children on rise, parents should understand the risks and red flags NKyTribune Melatonin tells your body when its time to sleep, but too much screen time can lower its levels. Most people take before bed, but timing also matters! Taking it 1 2 hours before bedtime in Can You Overdose on Melatonin? Is it possible to take too much melatonin? We asked the experts National Geographic Melatonin Side Effects Long Term Use: The Complete Safety Guide WishNew WishNew Wellness Can I Take Melatonin Twice in One Night?