I ordered from iherb.com (USA), no probs delivering them into malaysia.

Not sure they really work all that well though..if you're struggling with sleep there are some other ways to deal with it. Try turning all the lights off in your place 1 hour before you sleep, so your brain knows its time to sleep and will start producing melatonin naturally. Also if you're stressed out try some yoga or meditation. Lots of different ways you can slow your brain down. Also plenty of exercise and eating well, all of those things help you sleep better.