There are many Fey beings in the world, those who are pranksters, those who thought themselves kings and queens...and those who have a job. The Sandman is one such Fey. It is not one he complains about much! To be able to help people have a good night's sleep and be well rested and happy the next day makes him happy, and he is willing to work around the clock to make it happen.
He has, of course, heard of the coming Nightfall and by extension Daybreak Academy...although the school's mission is not the only reason why the Sandman is aware of everyone there.
The terrible sleeping habits, those who didn't need to sleep or just
didn't sleep even if they needed it, the weird schedules...! It's all so terrible! He understands the stress of Nightfall must be getting to everyone (that has to be why everyone is forgoing sleep, right?) but going without it will end poorly. Nobody is happy with this.
He has to do something.
So very early on the morning of
September 17th, those who are awake may spot a wizened old man with a staff wandering the school. But there will be not enough time to ask just what his deal is. The Sandman taps his staff against the floor and soon the air will be filled with sand that will quickly spread throughout the Academy and Soleil. Soon everyone will fall under the Sandman's spell and start feeling sleepy.
Come now...close your eyes. And enter the world of dreams.
-
Come 6 o'clock in the morning on
September 18th, characters will be released from the spell and will wake. The Sandman has moved everyone around so they are not at risk of being injured - mostly by stuffing people into the dorm rooms and probably not the right ones either. Enjoy your new roommates!
Meanwhile those who check the network will find a message waiting for them.

UN: T. Sandman
I hope you are well rested! What good and fun it is to get a good night's sleep, isn't it?(No need to thank him.)
[Information on this plot can be found here!]