Okay, I downloaded four files so far; Accelerator, Four Hours Sleep, Adaptive Muscle Memory, and Swordsman's Agility.
Last night I laid down to go to bed, and had Accelerator and Four Hours Sleep (in that order) on my mp3 to listen to.
One note, my only pair of earphones only have one bud, the other got removed.
Moving on, I put in my earphone, turned on Accelerator, and listened to the file; it was about 11 p.m. . As far as I can remember, I was possibly 5-10 minutes into the file, when I woke around 4 a.m.
So I assume that Four Hours Sleep worked, which is good.
Around 4 p.m. today, I laid down to listen to Swordsman's Agility.
The induction wasn't to my liking, but 4-6 minutes in I was out. I did come to, unsure if fully conscious, in the middle of the file. I listened to about four sentences of the actual body of the file, then I heard: "5. Awake and refreshed."
Once more, I assume success.