I seem to be a participating student,

Okay, so I have this Binural Beat track on my MP3, but it loops the song no matter what I hit.

It has two stages, the song, one: take me into deep REM sleep
Two: Waking up the mind while sleeping for LDing.
Now, like I said, my MP3 loops that song. So is their a track that would be fine to loop or is this track fine to loop all night?
I dont want it to loop and bring me deeper into sleep and keep waking up the mind, I would be messed up.