I just woke up to a light in my bedroom that shouldn’t be on

I knew it was off when I went to sleep. I just checked my Alexa history and it said I turned it on at 4:19am. I went into the details because I thought maybe I was like rolling around on my phone in my sleep and opened the app and pressed the button, but I turned it on by voice.
I didn’t believe it, but it has a recording of me asking it to turn the light on. I don’t even sound asleep/sleepy. I have no recollection of this.