My Favorite Sleep Supplement
Phenibut has always worked for me. I've only gotten it from liftmode.com, but have had no problems with it at all. The only thing you need to be careful about is to take periodic breaks from using it. If you do, you'll be fine
I get mine in crystal form, and measure it out with the little spoon that comes with it. I prefer the compactness this affords, and helps me get the measurement exactly right.