answer:It’s not so much that he can’t remember, I think, as the fact that he’s turning off the clock in a somnambulistic state. He’s doing it in his sleep, in other words. I keep an alarm clock in my bedroom so that when I wake up in the dark I can look at it and see the time. But I don’t use it to wake myself except in extraordinary circumstances, when I have to be up extra-early for something. Otherwise, I go to bed sometime after midnight every evening and wake up between 6:30 and 7:30 every morning, and that’s “good enough” for me. If I had to be awake by 5 AM every morning, then I’d be going to bed earlier so that my “normal wake-up” time would be “around 5 AM”, and I’d adjust as needed to get to that point. Your husband is risking his health by not getting enough sleep; but I imagine that you’ve already had this conversation with him.