Thats too cute. My Napoleon likes to dig at the covers and burrow himself under pillows as well. I thought I lost him once, he burried himself and was napping. I couldnt find him, and since the pillows were on either side of his ears...he couldnt hear me.
As for Chi's being related to foxes....homework time !
Google Fennec Fox and look at the images, youll see the similarities...