Hi, my name is Windy St. George, and this is how to give a newborn a sink bath. After your newborn's umbilical cord has fallen off and closed up around the belly button, it's safe to give your baby a bath.You can either buy a sink bath, that fits into your kitchen sink, or you could do it the old fashioned way, by just putting a towel in the bottom of the sink, and filling it up with water, only a couple of inches, and then get your newborn, and place your newborn in the sink. The towel is to keep the baby comfortable, and to keep her from sliding around, so holding the baby, so that you always are taking care of the neck, you place the baby in the sink, and with your other hand, wash her with your soapy washcloth, and then you can carefully kind of wash the hair. Tilt the head back to rinse off the soap, off the hair, and carefully keeping your hand over her eyes, pour the water gently down the back of her head. Newborns don't get very dirty, and so you don't have to use too much soap and water. Use a sensitive soap, you could even just use water. Make sure that you get the diaper area, because that is where they're going to have skin problems, if you don't keep it clean and dry.