Chamomile, valerian root, ashwagandha, and melatonin are all natural supplements that are commonly used for their calming and relaxing properties. Chamomile is a popular herb known for its ability to soothe the mind and body, while valerian root has been used for centuries as a resting aid. Ashwagandha is an adaptogenic herb that helps the body adapt to stress, and melatonin is a hormone produced by the body that helps regulate rest cycles. When taken together, these supplements can promote relaxation and resting.