Depending on the time of year and temperature. Or if it is an indoor or outdoor dog. I had a Peekapoo puppy(her hair was like silk, softer than human hair) I bathed every night because she slept with me under the blankets and it was not from my encouragement, I had never slept with a dog or even had a dog on my bed much less in it. I dried her real good and then she was right under the blankets with me with her belly right up against my back, it was so sweet I took the discomfort and it never hurt her. Dogs that go outside though I do agree need what God has given them to repel water and keep dry and warm.