"i used to be on trazadone, ambien, and ambien cr. i enjoyed both ambiens because i did get a lot of the sleep that i have missed out, but i did feel groggy when i woke up and still tired. when ambien cr started to not work as well, i would ride a bike and end up in someone else&#039;s lawn. my body got so used to all of them that they now after 1 year of not taking them, still treats my body as if i am &quot;high&quot;. everyone&#039;s experience is different."