Valerian root is an herbal remedy derived from the roots of the valerian plant, which is native to Europe and parts of Asia. It has been used for centuries to promote relaxation and improve sleep quality. The root contains compounds that may have a calming effect on the nervous system. Many people use valerian root as a natural treatment for insomnia and anxiety. It is available in various forms, including capsules, teas, and tinctures. While some studies suggest it may help with sleep, more research is needed to fully understand its effectiveness and safety.