Natural sleep aids and remedies may help induce sleepiness, but these products along with dietary supplements are not regulated by the FDA for quality, dosing, and formulation, which makes it difficult to judge the drugs’ safety and effectiveness. Hence, it’s important to research as much as you can on the sleep herb before you try it, and talk with your doctor about the benefits and risks of natural sleep remedies. Some natural products include melatonin, valerian, and 5-hydroxytryptophan (5-HTP).
References:
http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0001808/
http://www.nhlbi.nih.gov/health/