That's basically every downer, every CNS depressant ever. You've got the alcohol, the opiate/opioid, the benzodiazepine, the sleeping medication... man, I'm surprised you woke up!
I've probably taken similar combos before, but I've never felt in danger or at risk of falling out. I don't take those sorts of combos anymore, not because it's reckless, but because I simply do not have the same access to those sorts of drugs anymore. lol
It's rare now that I come across some ambien or some benzos; I'm sure that I could find them if I went looking, but, y'know, they're not drugs that I care enough about to go looking for, so, they've become the drugs that I do only when I come across them and they're offered to me by a friend or whatever.