Melatonin gummies can be beneficial for certain sleep problems, such as difficulty falling asleep, jet lag, or circadian rhythm disturbances. They work by increasing the amount of melatonin in the body, which can help people fall asleep faster. It is important to note that over-the-counter melatonin supplements are not regulated or tested by the U.S. FDA.Melatonin gummies can be beneficial for certain sleep problems, such as difficulty falling asleep, jet lag, or circadian rhythm disturbances. They work by increasing the amount of melatonin in the body, which can help people fall asleep faster. It is important to note that over-the-counter melatonin supplements are not regulated or tested by the U.S. FDA.