I wouldn't mind trying zopiclone and zaleplon at some point (how come you never hear much about zaleplon compared to zopiclone/zolpidem, anyway...?)
I think that zolpidem is the only z-drug that's allowed to be prescribed in the USA, though, so it's probably the only one I'll get to try.
By the way, someone gave me 4 mgs of bupe (half of a 8 mg Subutex) recently. I have never taken buprenorphine nor really had much of any interest to try, but this individual talked it up quite a bit & said that it was fairly recreational. I was wondering if anyone had advice on how much I should take...? For context, my opiate tolerance isn't super high despite the fact that I'm an on-again-off-again tar heroin smoker (and, rarely, IV opiate user). I guess I could go look in the bupe megathread but I just felt like asking here if anyone had insight...