hi moon, i use a generic brand from www.4rx.com but what i find is that u have to take it with another sleep med, its like a 1+1=3 effect. I found on its own makes u feel abit groggy but not enough to turn the lights out. But i definately feel like i have slept deeper and wake feeling more refreshed. I usually take 25mg of baclofen with 1-2 tabs of zopiclone, it also prolongs my sleep longer then zopiclone alone. I also find i have to take it irregularly or else i get tolerant to it, which is different to what i have read about it. cheers!!!