Gummies are a great method of delivery for children and while these aren't formulated especially for them, they will still work but are not recommended for long-term use.
The recommended dosage of melatonin for kids is between 0.5 and one milligram, although you can go up to a maximum of between three and six milligrams if you need to. For CBD, most people cut their gummies up into 5mg doses for younger kids or 10mg for bigger, older children.