Ambien and I did NOT do well together. Admittedly I was also taking it AND drinking heavily so who knows if that was the issue. For me though, like many others, I would take it, fall asleep easily-actually SO easily that it was BAD. I would take it and when it kicked in I would literally drop whatever was in my hand, very bad. I would wake up a few hours later almost always though and it made me jittery. My husband finally begged me to stop taking it. I switched to Lunesta which takes longer to kick in (an hour after taking it) but I don't have the jitteryness or falling asleep akin to passing out on the spot and I generally sleep all the way through the night.. I may have some weird body chemistry but it'll be a cold day in hades before I ever take Ambien again.