Magnesium supplements?

[El]

Anyone have any experience with magnesium supplements?  Specifically hoping for more comfortable sleep (there's a restless leg component, there's an achy-body component, and there's an elle-just-doesn't-sleep-right-anymore component).  Concerned about side effects, generally skeptical, but I'm desperate enough for better sleep that I'm starting to consider the mildly kooky stuff.

[Icequeen]

I take magnesium citrate from time to time. It's not something I can stomach every day, and not something I will take on an empty stomach.

Honestly it never seemed to help with sleep...or make me any calmer, but it does help greatly with leg cramps, a little less, but some with joint pain .

I even bought the spray on stuff for joint pain. I think it works by making your skin burn so bad you forget about the pain in your joints. Some seriously wicked shit that I will spray in the face of intruders after I beat them with a baseball bat.