Melatonin.... can I purchase it in Saigon..?

It helps me sleep....

No problem. I got mine from Luke's Pharmacy in The Crescent, Phu My Hung. It's made by Nature's Bounty, NY, USA, called Melatonin 5 mg.. Reasonably priced too.

Thank you sweetpants.... I will follow up on that....

ps.... does it give you nightmares and vivid dreams too...?

So far, it's worked for me. But I only take it when I need to and not regularly. Hope it helps you too.