Moo?

Ian lost his cow blanket last night. He has slept with that cow blanket every night for almost since birth. He depends on the cow blanket to comfort him when he's hurting, calm him when he's upset, and entertain him when he's bored. And now it's been missing for over 24 hours. I swear I've looked everywhere inside and outside the house, and can't find it. He seems to be sleeping okay, but he misses it often throughout the day. If I can't find that cow blanket, he's either going to adjust and learn to soothe himself, or things will get very ugly around here.