Hakkai blinked and looked up from where he was kneeling on the floor of the small bedroom , digging through his pack in search of his toothbrush . Hakuryuu was already asleep on the pillow of the spare bed . " It was just a simple room switch , Goku , " Hakkai said with a smile . Goku huffed slightly .

Question: What may have happened before the room switch ?
Answer: Goku wanted to switch beds .Goku wanted to switch rooms .Goku did not want to switch rooms .Goku wanted to switch toothbrushes .