Todays talk is about sleep, the fairies discuss how much sleep is needed to be efficient and the different type of sleepers.  In  The Room of Spirit and Time a dangerous game of magic shiritori is played.
to separate people into 
groups based on their sleep.
separar a la gente en grupos basados en cuánto duermen.
que odia separar a la gente en grupos.
em separar as pessoas 
pela forma como dormem.