I occasionally use fast dissolving melatonin. I use the 3 milligram kind. It doesn’t make me groggy. The only problem is that I have had trouble finding it. I found it several states away at a Walmart in Pennsylvania, but I’m sure you can order it online. My brother in law also had some extended release melatonin which worked pretty good. I have had no luck finding that in stores. He does not remember where he got it from. Maybe you would have more luck then me. I tried Zzquil one time and I had a bad night terror so I never took it again.