Why it comes up

Magnesium is involved in muscle and nervous-system function, which is part of why people reach for it in the evening. Many find it fits naturally into a wind-down routine.

What it is and isn't

Magnesium supports normal muscle and nervous-system function. It's not a sedative and it won't fix a sleep schedule that's genuinely out of sync. It's one small, well-established piece of a routine.

Form matters

Not all magnesium is the same; some forms are gentler on the stomach and better absorbed than others. That's why the form is worth paying attention to, not just the word on the label. If sleep problems persist, that's a conversation for a professional.