Chihuahua’s dogs have lots of personality. They are loving, emotional and smart! One of their most endearing habits is to snuggle under blankets or clothing to sleep.We really don’t know why they do this but there are several theories.One is that it may be a natural instinct.  It’s behavior encoded in their genes.  Their wild ancestor’s probably slept and raised their young in burrows. It’s also possible that snuggling under blankets will make these little dogs feel safe and secure. Perhaps it’s just warm and cozy. Chihuahua’s especially the smooth coated variety don’t have mush hair and get cold easily. Whatever the reason, Chihuahua owners have to be careful not to sit on a dog hidden beneath a throw or  comforter.  Get a comfortable dog bed and maybe your Chihuahua will sleep there instead of  hiding in unsafe places.