Every time I set the alarm on my phone to go off at 4:30 for WBTB, I always (well, not always, 9/10 times) wake up at 2:30 am, but if I don't set my alarm, I don't wake up at all during the night. Does this happen to anyone else, is it normal?

Actually, now I'm quite glad for it because it means I can attempt WILDing at 2:30 rather than the usual WBTB at 4:30 because my alarm just repeats over and over, so I have to reach to turn it off lol

Anyways, this happen to anyone else???