Doctor's Best Best L-Tryptophan Enhanced/TryptoPure w/Vitamin B6 & Niacinamide. - 90 Vegetarian Capsules - LuckyVitamin.com
One of my aforementioned friends uses LuckyVitamin.com so I did, too.
I've just woken up from my 3rd night of trying it. So far I am enthused!
William