A nurse is reinforcing teaching about home safety precautions with the guardian of a newborn. Which of the following instructions should the nurse include?

Ensure the crib has soft bumper pads on the inside.

Set the temperature on the water heater to 48.8° C (120° F).

Wash the newborn's face with a warm, soapy washcloth.

Place a small pillow under the newborn's head during naps.