Melatonin Dosage for Kids: Understanding the Right Dose Melatonin and COVID 19 Those Nerdy Girls Melatonin and your sleep: Is it safe, what are the side effects and how does it work? Cultivating Health UC Davis Health Solving your sleep woes with melatonin: From dosing instructions to timing supplementation, here's what you need to know about the natural sleep hormone. 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