I used to IV zolpidem with heroin to give a really strange trippy and heavy nod. (don't do this unless you have tolerance to both)
IV zolpidem alone is extremely strange, I like the trippy but calm feeling it provides, for 15 minutes untill I either lose time somehow or fall asleep. If you live with someone and want to get high on zolpidem, tell your partner to hold the pills. I've woken up after only intending to use 4 and instead finding 50 were used. After this I experienced some random wtf stuff like finding milk put in the freezer and some msgs on my phone that I sent that neither I or anyone else for that matter, ever understood. Once woke up with 100$ I still have no idea where it came from and where I might have gotten it. Well, while it was a bit unsettling, if you are going to have total loss of a day, it's at least good to know you've been productive.
Also made friends somehow with people I don't remember ever existed when they called me afterwards. It has led to confusion a couple of times.
Zolpidem is the WTF drug. Expect the unexpected.