In Queer Theory, the bunny’s final admonishment—"goodnight noises everywhere"—represents his full on embrace of a heteronormative lifestyle and a rejection of his "deviant" thoughts, probably about the kittens with the mittens.
mjj note: This is a grave misreading of the text. The kittens and the mittens have a purely juxtapositional relationship to each other. The kittens do not own the mittens, nor vice versa.
(Thanks to stanking for the FB heads up.)