Hi, I'm having a great deal of trouble sleeping lately I don't know why but things are just keeping me awak, my heart rate seems to be more prominent these days and i can litterally feel my neck bonce off the bed each beat??? So I bought this today at my supplement store. Has anyone tried this and what were the results? Ive heard it's supposed to be better than melatonin because it doesn't leave you with the grogyness the next morning which I hate. Thanks in advance.