Curling Up
When a dog curls up like a fox, it means that they feel cold. They wrap their tail around them and they keep their paws underneath their body to try and retain body heat. Put a blanket on your dog if they sleep this way.
Back To Back
Many people forget that dogs are actually ‘pack’ animals since doggos have been so domesticated. However, you might get reminded about this when you see dogs together and they exhibit certain behaviors. For example, they sleep back to back. Aside from being totally cute, it means they absolutely trust one another.