I can see both sides of this.
I think your DH is being selfish because family life means adjusting to different time zones (effectively, for some of us). I am a night owl and have adjusted completely to the fact that my children wake up between 7 and 8 every single day. (It helps that between 7 and 8 is pretty reasonable, I know that some children wake up at 5 every day but for us when that has happened for a period it has been exceptional - and nearly killed me.)
On the other hand, it is not a real adjustment. When I could please myself I used to get up as late as possible to get to work on time during the week, and at the weekends used to adopt my preferred much later hours. the best and most fun and productive hours have been lost to me. I can stay up till 2am of course, but I won't get the benefit of those hours in the way that I used to because I will not have slept more than 5 or 6 hours ever.
The alternative hours that I get instead - the hours between 7 and 10 (or even 12) in the morning- are not creative, interesting, or exciting (for me). I often feel tired in the mornings, even if I have slept a reasonable amount; and if I don't actually feel tired, I feel functional and best, and never really alive. (I believe that for larks, it is the opposite and their true selves are awake in the mornings, whereas they later hit a point in the day where its just "dead time" and they may as well go to bed - they wouldn't like to swap either)
It is physically possible to live against the grain in this way, and if you have children, and you refuse to adjust, and you expect your partner to be the only one really available for family life - that is selfish.
However, it is a big adjustment and for some a huge loss. This is a huge part of me that has never been the same since having children. There is a piece of me missing. I can't be bothered to grieve it any more. I accept that I am just a fat functional boring person but I try to be a good mum.