Ditto. I can't believe this isn't the top reply. Three and a half years post-fatherhood, I don't even remember what it feels like to sleep late. I've gotten better at managing bed times (lights out by 10:30-11 pretty much every night). And I wake up on my own by 6:30 even on mornings where my wife is handling the breakfasts.
All of which is just corroborating the linked post: just do it. Make yourself go to sleep at a reasonable hour. Make yourself wake up, by whatever means you want. You'll find you adapt surprisingly well.
All of which is just corroborating the linked post: just do it. Make yourself go to sleep at a reasonable hour. Make yourself wake up, by whatever means you want. You'll find you adapt surprisingly well.