I can also vouch for magnesium and the l-threonate variant. I take both before bed along with glycine powder, phosphatidyl-serine, l-theanine, l-tryptophan, ash

I can also vouch for magnesium and the l-threonate variant. I take both before bed along with glycine powder, phosphatidyl-serine, l-theanine, l-tryptophan, ashwagandha, and saffron. No melatonin, no sleeping pills. Finally getting decent sleep for over a year now.