MSLT ??

Anyone ever had this test? I had a regular sleep study in October. Turns out I don't have apnea but there was something about the amount of time I spent in REM sleep and the speed with which I fell asleep that made it an abnormal sleep study. I had to go back last night for another sleep study and today I had to spend the entire day at the sleep lab. I had to stay "wired up" all day and had to attempt to take a nap every two hours. I fell asleep with every nap. Anyone know exactly what this test is looking for? I looked it up on WebMD and it mentions narcolepsy, which I'm pretty sure I don't have.

That is the test for Narcolepsy. But Narcolepsy is not just when you fall down asleep. I have it but have Severe Excessive Daytime Sleepiness. I also have the gene. I fell asleep within 2 minutes when they started the test. I think if you fall asleep before 5 minutes you have a problem.