The incidence of sail ears appears to be lower after birth than in the following years of life. Studies have therefore assumed that the ear cartilage is deformed by lying down. In the first few months of life, the ear cartilage is easy to shape. This property is utilized in the ear correction of newborns with silicone dressings. However, it is uncertain whether lying down has a significant influence and how high this influence is. What is certain is that in the majority of cases a predisposition leads to protruding ears. A varied sleeping position for babies also prevents head deformities caused by positioning. The baby’s head should be turned sometimes straight, sometimes to the left or right when sleeping in the supine position.