How do you deal with a 3-4yo who refuses to sleep early? (9pm) and sleeps only closer to 11pm? I'm thinking of making my LO exercise until she KO. Heh.

Waking up early will usually drain the kid of energy by 9pm. If your child wakes up like really late, no matter what you do to her, she Wun KO one. Cos the battery haven't been expended. My 2 yr girl sleep just before 10 and wakes up close to 7am. Has become a habit already.