I think something is living in our room. Maybe under the dresser or chest of drawers. I swear I can hear chewing in the morning when I wake up. It sounds like the noise made by a dog's tiny front teeth then they're trying to get at a flea, but very quiet, and I hear while Emma is snoring, so it isn't her? Or maybe she is making noise with her mouth while she sleeps? I don't know, but I will be looking under furniture tonight before I go to bed.