Make sure you have a sleeping pill for the sleep test!!! That way you are more likely to go back to sleep after the tech from the next room YELLS in the microphone that you need to readjust your mouth thingy.

I only slept 2-3 hours that long, miserable night.

Don't be depressed -- it might just be the thing that will help you feel better.

It does take awhile to get used to the darned contraption.