You could also try adding L-Tryptophan, an amino acid, which is the precursor of serotonin. Serotonin then gets converted to melatonin in the pineal gland in the brain... You can take up to about 15 - 20 mg of melatonin, but generally these doses are reserved for cancer sufferers... err on the side of caution and take 10 mg supplemented with L-tryptophan...