I was at Costco looking for melatonin for my husband. He sleeps poorly He has been using melatonin for years. I saw a new one Shiff Melatonin Ultra. In addition to 3mg melatonin, it has" theanine, gaba and a herbal blend," It says, "Helps you fall asleep fast and sleep well." I looked up Gaba on line after I bought it, and it says it helps you fall asleep.
Anyway, for the past four nights he has been sleeping well! This is close to a miracle!