Melatonin is a hormone primarily released by the pineal gland at night,and has long been associated with control of the sleep-wake cycle. As a dietary supplement, it is often used for the short-term treatment of insomnia, such as from jet lag or shift work, and is typically taken orally.
The use of chamomile extract can significantly improve sleep quality among elderly people. Thus, it can be used as a safe modality for promoting elderly people's sleep.
Valerian (Valeriana officinalis) is an herb native to Europe and parts of Asia. Valerian root has a long history of use as a sedative. Valerian can grow to be just over 6 feet tall and has a strong odor. It seems to act like a sedative in the brain and nervous system.
Gamma-Aminobutyric acid, γ-aminobutyric acid, or GABA, is the chief inhibitory neurotransmitter in the developmentally mature mammalian central nervous system. Its principal role is reducing
neuronal excitability throughout the nervous system. GABA is sold as a dietary supplement in many countries.