(as you try and sleep after a super long day the door to your room opens as a young girl about 4ft3 with real cat ears and a small canine tooth walks in and shuts the door, they sit on your bed and looks at you)

she looks at you and smiles while talking just above a whisper

Mau:"hi, im mau the sleep familiar that came her to be your familiar and comfort you whenever you need it, all your worrys will go away hehe"