I get up at 6:30 am each morning. My plan was to get up at 4:30 am instead, work for two hours on deep work before my kids got up, and then continue with my day. I got up early before when my older child was a baby, and it worked well. This would have the added advantage that I would come home from work an hour earlier (since I worked two hours in the morning), giving me more time with my family. On top of that, I like to run to and from work, and my biggest barrier to that is Daylight Saving; I live up North, so it gets dark early. I run on a highway, and it is not safe to do so in the dark. By coming home an hour earlier, I would be able to run home pretty much right now (if I can get over my wimpiness about running in the cold). This also means that we spend less money on gas.
So why I am not doing this? There are two main reasons: in order to get enough sleep, I would go to bed two hours earlier. Night-time is the only time for me to have alone time, which is important to me. Also: morning is the only time that my wife gets alone time.
So I my best plan is to try to carve out as much time during the work day as I can, and resign myself to the fact that I won’t be able to do deep work every day.