Since it is official and Kate has sleep apnea, I have decided to treat it as a medical condition.
Last week she went to bed late Saturday because of her school carnival (7pm), and Sunday (6:30) because of a friend's shower. The week continued with her waking every night with a nightmare (someone chasing her its a knife one night). By Thursday night she was tantrum in and exhausted. Friday morning she couldn't get her shoes on without freaking out (throwing, hitting). I then decided it was a medical necessity she rest and kept her home. She rewarded me with a two hour nap and no tantrums the rest of the afternoon.