I think my kids have a pack - "Let's not let mom and dad sleep in EVER"!
Last week, Monday and Tuesday - Bean was up at 6:15 am, Little C slept until 7 am
Remainder of week (and weekend) - Little C was up by 6:30 and Bean slept until after 7 am
So, when you want it most (over the weekend), we were still up early.
This morning - alarm goes off at 6:15 - both kids asleep! Both slept in until almost 7 am.
And the trend will continue.... and I just wonder why!