I've always done well with the 10 mgs of melatonin, although that's too much for others. No grogginess or other issues.
You may have to consider using a prescript
ion sleep med, although I would encourage you to get a 24 hour saliva test for your adrenals first, as malfunctioning adrenals can really mess up a person's sleep!
If you would like to check out more about
adrenals before submitting to having them tested, here is a site that I have used extensively for not only my adrenal information, but for thyroid info as well:
www.stopthethyroidmadness.com/