I have used magnesium citrate on and off with good success...
in helping sleep and consitpation and muscle cramping.
Jarrow makes a Magnesium Optimizer for just over $7 from
liverfriend.com
Also I like Natural Calm which is a magnesium powder that really hits the system fast and is very effective for sleep and constipation. You have to search for that, but it is around $18.
I am glad I read this post from the Newsletter as this reminds me to take magnesium and electrolytes after flushes and enemas or colonics.