My son has been sick for a week now, and my husband drinks beer almost every evening. He drinks one…

My son has been sick for a week now, and my husband drinks beer almost every evening. He drinks one to three one-liter bottles of strong dark beer, then sleeps alone in the living room. My son doesn't sleep well at night, and I have to sit with him. And for the second time tonight, the light in the living room, where my husband sleeps, turned on by itself. The first time, my husband supposedly heard someone turn on the light, then heard a sleepy grunt of displeasure. He came to me and started asking if I had done it, and so on. We then blamed our daughter, saying she sometimes sleepwalks. Although that night, like all the others, I was awake at that time and didn't hear our daughter's steps, even though our bedrooms are adjacent. And today, the second time happened. This time, my husband didn't wake up; he just kept sleeping in his drunken stupor. I noticed it. My son woke up and asked for water, so I went to find his sippy cup around the apartment. I found it in that same living room, but I didn't turn on the light; I just took the cup and left. An hour later, I went to the kitchen for some ibuprofen and saw that the light in the living room was on. I went in, and my husband was still asleep 🤷️ Our daughter definitely didn't go anywhere; there was no movement in the apartment at all. Now I'm lying here, unable to sleep because of this. I don't understand why the light turns on, why specifically in the living room where my husband sleeps 🤷️ Maybe he's doing it himself and doesn't remember?