Yeah, dogs smacking their lips at night is super annoying. Also, our black lab mix will scratch himself in the middle of the night, and his collar and rabies tag are loud enough to wake up the neighbors. We usually let him lay on our bed for a little bit while we wind down and get ready for bed, but then kick him out into the hallway before turning the lights out. Then he'll sleep at the top of the stairs and guard our bedroom all night.