OP, I see how you fell into this, because when I love someone, I do similar. And what I've realised, looking back, is that the men who didn't appreciate me and reciprocate with similar care, either didn't feel the same way about me, or were abusive, even if I didn't recognise it at the time. Lots of abusive behaviour completely slips under the radar, epecially if you come from a family where abuse was the norm. Those partners didn't love me, I was just the 'partner appliance'.
This isn't even about sheer thoughtlessness either, or some 'unspoken rules of a game'. He clearly KNOWS that a good husband would take his turn getting up early, and a good father would be involved with his children, because he's very happy to pretend to be that person when other people are around.
All those people telling you to 'just wake him up' - do they never set an alarm even for their loved one's birthday? Do they really care so little? Because to not even be bothered to do that - yeah, that's not love.
Relationships should be reciprocal - and it's all very well to say OP should stop martyring herself, but I guarantee that if she did, there would be all sorts of ructions. OP would be treated like any other broken appliance.
OP, is this really what you want? A relationship that depends upon your own self-sacrifice?
If he really isn't abusive, then relationship counselling may help. If he isn't willing to do that - again, it speaks volumes about how he feels about you.