Hypnosis and Sleep

So, I was listening to Fembuttgrowth the other night in bed, and then SHM subliminal to help me sleep. But when the files had done, I dounf that I woke up again every hour afterwards. ie, first at 12:14, then 1:14, 2:14, etc, and I found it easier to get up when I needed to. What's up here?