Does Melatonin actually make a difference, or is it overhyped?

Melatonin is among the most heavily meta-analyzed sleep supplements, and the picture that emerges is a real but modest effect that varies by population. Weighing the data: Melatonin looks an early-stage, lower-priority area for now — the evidence is only moderate (62/100), and its estimated impact (30/100) is on the lower end too.