Woke at 2am and went back to sleep, woke again at 1am.

I hope this is the proper place to post this. I had a strange experience in the early hours this morning. I went to sleep around 10pm last night. I woke up feeling well rested and figured it was nearly time to get up. Checked my phone and it was 2:26am. I thought about getting up, but I didn't want to disturb anyone else, so I went back to sleep.

Again, I woke up feeling very refreshed and checked the time. 1:11am. This time I got up and checked the actual clock to make sure my phone wasn't being weird or something, but it was correct. I was a little bit scared to go back to sleep again, but eventually did and when I woke up again it was to my alarm.

Has this sort of thing happened to anyone else? Or any possible explanations? I don't think I just dreamt of looking at my phone the first time.