I've been taking Ambien since October 2009. A 30 day supply (30 10mg pills) usually lasts 2-3 months, so no, I don't use it everyday. I started taking half a pill (the first 30 day supply lasted 5 months, I was so scared of this dependency everyone was talking about), but now, I take a whole pill usually 3 times a week. As a matter of fact, I just took one about 15 minutes ago, so I need to get in bed!