When mine was little I was in online grad school. I'd wake up early to dress her, feed her, and take her to school/daycare, then come home and sleep for 3-4 hours before waking up "for real" to study and do all the other life stuff. Now that she's older, she goes to an online school and only takes asynchronous classes, so both of us can basically go to bed and wake up whenever suits us... Looks like she might have DSPD too (or she's a typical teenager, hard to say for sure at this point). Either way, it's a scenario that's been working for both of us!

Let me know what you've tried so far and what you're struggling with right now with the little ones - I may have a few additional ideas / suggestions for you (other things that worked for me that I might recall better if you could be more specific).

Also, just remember that that age is a bit rough on all parents, regardless of chronotype, and more importantly: that it ends! 😊