I thought I could wake up before my alarm went off too, but after a little retrospection I considered that perhaps I "trained" myself to get up at the time. Tha

I thought I could wake up before my alarm went off too, but after a little retrospection I considered that perhaps I "trained" myself to get up at the time. That is, I used to use the alarm, then stopped using it, but continued to get up at the same time.