First of all, I have to say that I was skeptical of this product. What can a "powdered drink" do that other items couldn't and what would the side effects be? Happy to say that this mix helps you fall asleep and there are no groggy side affects in the morning. It isn't magic but simply helps you relax and doze off. The mix isn't perfect, it frequently clumps even when mixed with warm water but it is worth it and I have already ordered again.