Angels Sleep

The angels all awake grogglily, their heads simultaneously rising from the desks. One of the girls, the brown-haired one, smiles warmly at the others, saying in a pleasant tone, "Good morning" before her head fell back down onto the desk, all of the others falling in unison before they were all asleep once more.
The teacher sighed at the front of the class. No, nothing was ever accomplished in this class when the "angels" fell asleep.