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. Whatever the case, when a dog is doing the Crazy Legs, they are letting their family know that they feel 100% comfortable and safe.
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. Dogs who sleep in this way are very calm and care-free. That is way the saying says that side sleepers are happy dogs.