Trouble Sleeping

It's been years that I've faced this dilemma of sleepless nights so I finally thought I'd do something about it.

I recently bought Melatonin in hopes that it can help get me sleeping easier.  I didn't think this was too drastic a measure considering it's 'natural' so hopefully any side-effects will be extremely rare for me.

I tried one a few days ago and I must say that it was one of the best nights of sleep I've had in a while.  I woke up feeling completely rested and I was far from groggy.

As much as this miracle pill has helped me, I don't want to become dependent on it and would still like to try more natural ways.

Any tips?  Thanks.