, a hormone produced by the pineal gland
in the brain, helps regulate the body's sleep-wake cycle, and its production is determined by light and dark. When darkness falls, the gland produces more melatonin, which promotes sleep.
Parents who have tried it say the pill has been nothing short of miraculous in getting their children to sleep. It's a trend that is occurring despite doctors' general reluctance to endorse melatonin as a sleeping aid for healthy children.
Most melatonin supplements contain 2 mg…3 mg…even as much as 10 mg of melatonin! People using melatonin supplements typically see temporary improvements in their sleep patterns and then fall right back into frustrating sleeplessness
Decades of research and clinical trials uncovered the fact that too much melatonin can actually overload melatonin receptors in the brain. In essence, drowning them in so much melatonin they are no longer able to process it properly.
It appears that 0.3 mg is the ideal amount, to restore normal levels of melatonin so you can fall asleep fast. So the solution could be using less rather than more, if it is not working as expected
After reviewing numerous studies, the U.S. Agency for Healthcare Research and Quality in 2005 concluded that melatonin supplements are safe if used for days or weeks.
Always consult your doctor before giving your child any medications or supplements.