My ds is 2 and absolutely loves his soft toy sheep (named 'Sheep' - very original
). His great grandparents gave it to us when he was born and it became a favourite. Luckily he doesn't insist on being attached to Sheep 24/7 but he does have him in bed, when we go in the car, on the sofa etc. He tells Sheep that he loves him which is very cute. I do worry though that if we lost Sheep he'd be quite upset. I've actually looked for a replacement just in case but m&s have discontinued it and someone on ebay is selling it for £45!! Crazy, no way would I pay that.
Does your child have a go to comfort toy? Have they ever lost it?