Bests & Worsts Reviews from Amazon

Not sure what and why this product did not help while other Magnesium product did. After one week taking one capsule in the morning and one in the evening, I was wide awake for three nights in a row. I stopped taking it and it took few days to fall back asleep as usual. Four weeks later repeat the same thing, I thought I want to give another chance, the same exact result after exactly seven days taking it. Why other Magnesium products worked not sure, why this product caused me insomnia not sure. Any advice is appreciated.