This was recommended to me, & neurologist approved, but I still woke up at 4am with no avail.
Try herbal tea, there are teas that focus on sleep. With melatonin, I would sleep but my mind didn't- eyes closed but brain still functioning. My neurologist also has me on propanol because of hand tremors and that definitely knocks me out.
This may sound strange I had that same problem for a year. While researching I came across adrenal gland fatigue & a mixture of orange juice cream of tartar & salt I believe. After about 2 weeks I was sleeping through the night again. I'm not some sort of alternative cure kinda guy so I was surprised it did some good! After the two weeks I stopped taking it as well
I take a natural sleep support, called Ageloss. It has 5-HTP, Melatonin, Chamomile, L-Dopa, Casein, Decapeptides. It's actually works for me. I take to, but my hubby takes 1. He loves it too
I do at times take melatonin in small doses my doctor( neurologist) also suggested it to me bit I do at times find myself waking up in the middle of the night.