I think aromatherapy thingies (technical term) can sometimes work.
Sleep Balm and Night-Night Balm (both manufactured by Badger) work well. You might try your local Whole Foods/Wild Oats to see if they carry it; if not, shipping isn’t horrendous.
Also, TKO (made by Black Phoenix Alchemy Lab) works really well, too, but it’s a little pricey.
Meditation and/or practicing thinking of ‘nothing’ (literally clearing your mind of everything) works well for me. I can’t hold onto it for more than a split second, and I might have to repeat a few times, but it sends me off to sleep super-fast.
If that’s too difficult, try counting backwards from 50 (or another large-ish number). Breathe in, and out, for each number. This calms the brain and makes you very drowsy! (Or at least it does me.) I’ve never had to do more than 1.5 rounds of this. Ever.
If you want something to help you sleep but isn’t addictive, Benadryl works really well, reasonably fast, and will help with any allergies you have. (I have a hard time getting my brain to ‘quiet down’ at night, and taking a Benadryl about 30 minutes beforehand helps tons.) (Also, my grandma, my mom, and my mom’s friend have all had Benadryl rec’d to them by their doctors as being a gentle non-addictive sleep aid. So it’s not all hearsay.)
Hope some of that helps!