If they're like my kids (6, 2, and 2): 10 isn't their bedtime...it's when I've finished dinner cleanup after their bedtime and can get on my computer to finish up tasks for the day.
My 2 year old is usually sound asleep by 9, and after some cleanup I have some free hours to catch up on work. Sometimes I can't help it if it's something interesting, and makes me feel better about only spending some 7-8 hours at the office. I escaped from academia too, where I got to having anxiety about every single minute not spent working, and now am still feeling the aftereffects.