Awesome, another cross country runner (I run for my school and for fun, yourself?)

From what I've read here there's little possibility of sleepwalking during an LD. About the B6, I've read you shouldn't take more than 2000-6000 MG over the span of a couple months. So figure out how much you're taking currently and how much it is monthly, and figure out about what's right. Remember that the recommended daily allowance for B6 is only 2 mg. Most B6 supplements I've been looking at are 25 mg, way more than is needed, but not specifically dangerous. There's a topic in another forum that's all about this, I'll go grab the link and edit in a few minutes.

EDIT: This is what you want
http://www.dreamviews.com/forum/viewtopic....?t=3343&start=0

It's hard to decide what to take really, so many opinions in that topic. From reading what other people take and different recommendations on how much to take, I probably wouldn't take more than 30 MG daily. If you're not taking it every day, you might take more than that.

Again, I'm not totally sure. I don't even take supplements. 8)