I really am not sure why I cant get my sleep cycle straight without meds. When I talk to my doctor about submitting me to a sleep clinic they said I have to try several meds before they can place me into a clinic. The docs first said I was depressed then bipolar, PTSD and none of those meds help me but make me more insane I feel. The Ambien was making very violent the following day just snapping away, the seroquel made me very fat and now the lithium is retaining water on my face. All of this just for sleep. To many doctors quick to diagnose someone with a problem they feel exist but in reality does not exist, they need to take the time to find out the root cause.