Comforter with a mouth shield and a hollow teat part which is fixed by means of an insert part in a clamped manner in an opening of the mouth shield, and which comprises a mouth portion, a shaft portion and a peripheral flange arranged at the end of the shaft portion remote from the mouth portion, the teat part having a security strip made of a relatively hard material, which is connected to the mouth portion, extends as far as the region of the flange and has a widening there.