Sleep - 3 mg of Melatonin at night does the trick for me. I also have a CPAP machine as my tests weren't normal. I have Central Sleep Apnea. Don't snore, don't have an obstruction, just a brain that forgets to tell me to breath when it's sleeping. I think it feels like it's worked hard all day and it needs it's rest too... (just making light of me!!)
I've tried melatonin 5mg time release version with no luck. My doctor is now telling me low iron can cause sleep issues.
Also just an update on the Ambien CR. Just got off the phone with Sonofi-Aventis and Ambien Cr is not made with any gluten ingredients. It is not certified or tested to be gluten free, but has no ingredients in it that contain gluten. The company that I called (Teva) that had the generic zolpidem tartrate told me they cannot gaurantee theirs is gluten free.