"Yes, well, it is late, I would advise you to proceed to bed shortly.  Your trunks are at the foot of your beds.  Yes, we have preselected where you will be sleeping but if there is an issue, we’ll address it.  Names for each room are on the doors.  You are welcome to change the colors of your bedding to your liking.  Any questions?"  McGonagall gave a glance around the room, but no one spoke up.  "I will see you bright and early in the morning then.  Good night."  She shook her head in a final nod, then headed out the door.