Where's the Sleep?

 We have a mystery on our hands...it's the case of the missing sleep... Only one person can answer that question, and she won't talk.  Well, can't talk.   It all started last week-ish when our suspect started staying awake later and later at night, and still getting up about the same time.  Granted, we attributed the congestion to the missing sleep.  Last night, the little one in question, was up all evening and didn't even think about sleeping until after 2am.  Then was up at 6.  I'm convinced she's hidden the sleep somewhere, and it's time we've found it.  (If you have knowledge of the whereabouts of this missing sleep, please contact Sleep-deprived Mother.  Thank you.)