Hello Lox. Where is out west? I live on the Vic/NSW border, 200 metres from the Murray River. Good to have another from down under on the board. My chemist recommended Bio-Zinc as a ZMA equivalant. It has the Zinc, Magnesium amd B6 and it has most certainly made a big difference to my sleeping etc. I used to get up most nights for a couple of hours, but now usually stay in bed and most often get back to sleep which is just great.Hope this helps in your search. Love Ozgran.