関連ワード:  why does my dog lick when sleeping    why does my dog lick me when sleeping    why does my dog lick his lips when sleeping    why does my dog lick the floor when sleeping    why does my dog lick the air when sleeping    why does my dog lick before sleeping    why does my dog lick me before sleeping    why does my dog lick everything before sleeping    why does my dog lick himself before sleeping    why does my dog lick his lips when falling asleep