Mystery

I definitely didn't turn on the fan when I went to sleep yesterday, but when I woke up, there was so much wind, and it turned out the fan was on. I don't remember turning it on in the middle of the night, nor was I hot, so I wonder when it actually turned on? It was truly a mystery. Usually, I remember if I wake up, but it doesn't seem like I kicked it because the position is wrong, and it's too far to have pressed it with my hand, so it's really strange. There was a wall of dolls between me and the fan, so if it had rolled over them, the dolls should have been scattered all over the place outside the topper, but they weren't moved that muchㅋㅋㅋ This is the first time something like this has happened.