Based on the context and the answer, generate a question. 

Context: 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 .

Answer:

Goku did not want to switch rooms .



What may have happened before the room switch ?