I've found this post extremely interesting and helpful in explaining a few things. I too suffer from pretty bad insomnia, and was prescribed stillnox. I tried one the first night I was given them, and went to bed expecting and hoping to fall straight asleep. However, within half an hour, I was hiding under my doona from the huge herd of rhinoserises (sp?) running towards me, and yelling out for my stereo to stop repeatedly playing the sesame street theme song. I was pretty freaked out as I hadn't slept in about a week at the time, and never considered doing it again for fun...I went back to the doctors, got prescriptions for other sleeping tablets and forgot about it. I'm pretty sure I still have the box of them somewhere, so might give it a shot. I'm pretty small, so if I were to have only half a tablet instead of a whole one, would this amount be more likely to make me sleep? Thanks guys...!