This has been happening for the past 3-4 nights. I am waking up 10-40 minutes before the alarm. It's kind an annoying thing. It makes me skip the alarm. Because I'm conditioned to try WILDing when I the alarm goes off, I don't try it when I wake up naturally. But I see it as a good thing. I will quit using an alarm. Maybe I wake up more than usual and naturally.