NightWell® For Immune Wellness & Restful Sleep with Melatonin From the makers of Wellness Formula® Source Naturals NightWell® supports immune wellness and promotes the restful sleep that’s especially important during times of imbalance. Immune function and upper respiratory health are supported with time-tested herbs, including the traditional Chinese formula Yin Chiao. Melatonin is included for its well-researched success in helping the body ease into sleep quickly.* Liquid Option Available: 2, 4 Suggested Use: 2 teaspoons (10 mL) one hour before bedtime. Mix in a small amount of water before drinking, if desired. A second serving may be taken if needed.