Just tried last night. I must say it was quite relaxing, at some point I was sleeping. Then woke up after 5h (this I realized later when I saw the clock) feeling reasonable rested, I even though on standing up, but saw the clock and it was still around 5am. So decided to stay in bed, and fall asleep again. At this point (I think) I had all kind of nightmares, waking up now and then after an 'episode'. At the end it was an experience, probably will give it a try more times and see what comes out.. (by the way, I never tried it before, so this is the first time I really listen to this kind of things)
Nightmares are often reported by people who use this advanced track but haven't used binaural beats for sleeping before. So, I made a "beginner" track that's a bit more gentle: http://bit.ly/binauralbeginner
Dr. Darwin