Anyone Ever Have To Do The Sleep Apnea Test?

Tomorrow morning, I'm being taken down to the VA Hospital to pick up one of those machines that tests you for sleep apnea. Just another test to get out of the way while the figure out what medicinal cocktail they are going to try on me this time for all that's messed up with me. Ha, good luck with that one.

Just wondering what to expect, I've never done it before and it doesn't sound too hard or bad, just an overnight thing, but because I can't go in to get it, it'll be brought out to the front when I get there, I don't get much one on one instructions. But my sleep habits suck. I sleep for a couple of hours and wake for a few, then sleep again when I can. This isn't because of breathing issues, but from migraines waking me.

Any info on this would be appreciated, if not, I'll find some somewhere.