Every night for the last 3 or 4 weeks J wakes up between 10:30-11:30. It's only for a bit (usually just until we replace his binky) but it isn't stopping and if we try to let him CIO he just gets SUPER worked up.

Thoughts?

He's 8 months. 7-8pm bedtime every night, regular bedtime routine, clearly tired/doesn't fight it until the late wake up. Then he sleeps until 5:30-6:30 am.