I have no idea, but their internal clocks are amazing. My alarm goes off every weekday at 6:30 AM. Levi wakes me up without fail every morning at 6:29 by sitting on my neck and licking my face. I take him out to potty, he eats breakfast, and then passes back out for another hour or so. Sometimes I can coax him to go back to sleep for awhile on the weekends, but he REALLYYYY likes to wake up, potty, and eat at 6:29. Funny little man.
__________________ katy&levi 
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