★★★★☆
I have realized just this weekend that my daily evening magnesium malate or citrate supplementation is likely *paradoxically* at least partially responsible for insomnia issues I've been facing. I went off the supplement for a week because I ran out and was amazed at how well I was sleeping without it. I got a new supply of magnesium malate, took (~200 mg elemental Mg) at 9 pm on a Friday. My brain was "on" at bedtime -- could not fall asleep until after 3 am. Weekend ruined! I slept a little better Saturday night w/o supplementation, hopefully will be able to get back to where I was before Friday.
I say paradoxically because Mg has in the past definitely been a HELP for falling asleep, and it has also helped me to overcome migraine pain. A few articles online show I am not the first to notice this issue.