I would try to avoid mentioning it too. I wonder though... if you're working to midnight, would it be easier to get there in the morning if you left earlier in the evening? There's NO way I could work until midnight, then get in at 8 am the next day - that's just not reasonable in my opinion.

I also wonder (and sorry if this isn't helpful, please feel free to ignore it!) if there's anything else that could help you with the mornings? For example, I have a TV in my bedroom that I set for a little bit before I need to actually wake up (then an actual alarm clock, in case I don't get up). I find it easier to wake up with the TV, because I wake up slowly (not startled), and can spend 20 or 30 minutes watching whatever is on... and slowly getting my brain in gear.

Just some thoughts... and sorry you're going through this. I'm struggling with feeling depressed lately too, and it's really not fun. Luckily, I mostly work from home, so nobody knows when I'm barely awake and in pajamas at work...