You only need one tip: get a kid. Won't help with productivity though.
I am quite aware of the differences between a human infant and a cat.
My ex-girlfriend at the time, would get up to feed cats.
So he'd bug her on the mornings she was in, and snuggle up with me on the mornings she wasn't.
Same cat learned not to beg at the dinner table for food. Even when sushi was being served. And yes, he loved salmon. Begging resulted in treats -- of wasabi applied to the nose.
He learned after the 2nd time.
TL;DR: with a sufficiently trainable cat, this doesn't work.
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.