insomnia
"I was on Zolpidem for around a month. It does make me go to sleep and is great for short-term use. However, you can become psychologically dependent on it. I started looking forward to my nightly fix and would feel panicky if I my supply was running low. It got to the point only 10mg could make me sleep. 5 mg did nothing for me (and I'm a very petite lady). It was very difficult to come off it. I've been off Zolpidem for nearly two months. I sleep naturally but my sleep isn't as good as it was before i.e. I wake up several times throughout the night. I don't know if this is an effect of month-long Zolpidem use. So in a nutshell - great for short-term use but long-term causes extreme dependency."