Hello trixi: I believe this is your first post here on PC. So... welcome to Psych Central.
Thanks for sharing your experience with Melatonin. I did try it at one point but it didn't cause me to sleep any better than usual & I was always groggy all the next day. So it's not something I would take. But everyone's different & it sounds as though it's been positive for you. So that's great!
Here are links to 5 articles, from Psych Central's archives, on the subject of how to get a good night's sleep:
10 Ways to Beat Insomnia and Get Better Sleep
14 Strategies for Sleeping Better
How to Quiet Your Mind & Get More Shuteye
The First Line of Treatment for Insomnia That'll Surprise You
Putting the Fear of Sleeplessness to Rest
I hope you find PC to be of benefit.