Admirable. I have similar age kids, average about 6-7 hours of interrupted sleep a night. They wake up between 5 and 6 am, asleep between 7-8 and I often don't go to bed myself until 11pm. I'm writing this comment while sitting next to my 3 year old who has woken up at 11:14pm and called out for comfort to get back to sleep.

I do 50% of the cooking, chores, school/daycare drop offs, work an 8.5 hour day 5 days a week, and have effectively zero time for any personal or extracurricular pursuits. I barely get any time alone with my wife as it is and if I gave up any of the moments we can snatch in between kids awake and asleep I don't think there'd be much of a relationship left. Once a fortnight I get a night to myself but often end up socialising. How do you do it? What's different about your life?