[m0zg]

Magnesium (in the form of ZMA) is known to increase the vividness of dreams for some reason. Or maybe it's something else in ZMA. I did take it daily when I was lifting heavy, and I can confirm. It's a side benefit in my book, unless your dreams are nightmares.

[vintermann]

This sounds odd, but who am I to disagree?

Sorry, I couldn't resist. Seriously though, I can attest that it seems to do something for sleep/dreams, though it's hard to pin down what. Either I remember more dreams, or maybe it makes dreams more distinct as opposed to merely "things you were thinking of as you fell asleep".

[ryanchants]

I take ZMA with 5-HTP to take the edge off the dreams.