I love it and have used it for a long time. I noticed that sometimes I need to take a break from it--for a month or two. I'll use melatonin during that time. both the melatonin and the trazadone seem to build up in my system and don't work as well so I switch it up. I think what sketis said was right on--make sure you give yourself enough time so you don't have grogginess. good luck!