1. Crazy Legs

We know you have seen your dog sleeping on his back with the four legs up, so that position has the name of crazy legs. Researchers say that dogs who sleep in this position tend to be submisive and feell vulnerable. With his for legs up, his stomach is completly exposed. If your dogs sleep in this way it means that they are very independent and laidback. 

2. Side Sleeping

This position is very common in pups. It has been said by researchers of Next Gen Dog that this position it is reserved just for naps. However, some dogs use for sleeping during long periods of time. The position is more relaxing than the Curly Sue and once again demonstrates full trust with the dog feeling comfortable enough to leave their tummy exposed.