When my husband and I got togeather, Dakota, my first b, would nip him if he moved the slightest bit during the night. One night at 3:00a.m. they finally had it out. Hubby pushed him off the bed, Dakota jumped back up growling. They went back and forth for at least 15 minutes. Dakota finally sat on the floor for a few minutes then jumped back up, curled up and went to sleep. He never nipped him again.