ambien totally works for insomnia. It makes me feel dizzy, makes me hallucinate for a couple minutes then I'm out. What kind of hallucination? I usually see vivid spirit type beings floating around. They were see-through, with a head and face and it's in my peripheral vision. Once I saw a huge group (20) of spirits float out the bedroom window. It looked pretty real and in my drowsy state I said, "Wow, there they go out the window." My wife was a little worried so I stopped taking them.