Our flock of sheep at the foot of the Pennines consists of over 500 breeding ewes. For a number of years we have overcome the problem of cold lambs by bathing them in a bucket of warm water. This method of warming has proved to be very quick and effective, however it did have a number of downfalls. The main problem being that it needed someone or something (usually a bailing twine halter!) to hold the lamb's head to prevent drowning. Another problem was that the water would quickly go cold especially when used outside.
As 'farmer's wife' the job of supervising the lamb to prevent it from drowning often fell to me. "We need something better than this" was the thought which brought about the development of the Woollie Warmer...