Thanks for your reply. I had invested a lot of money in a 3 month supply for my family. When contacting Chromadex I see I was case number 6200 approx. and upon talking with the operator after a brief place on hold she simply mentioned to stop the niagen for a few days and see if that helps. I would of thought she would of recommended to reduce dose as well but that was it. This was after 60 days of usage. I was surprised she didnt recommend to reduce dosage for a week as well but my sleep was really out of control so I had to stop all together. That being said my wife and son did not experience any sleep issues.