Attached Link: http://www.serta.com/

Serta is a company that makes mattresses. For beds. In the U.S., they are running a cute series of ads, where a flock of animated sheep interact with live actors. They are "counting sheep" - sheep that you count, trying to get to sleep - that have been put out of work by the purchase of a new, wonderfully comfortable Serta mattress. Don't ask me where that "counting sheep" business came from, but it's an old tradition, at least in this country. Supposedly, if you imagine a series of sheep walking by, and count each one, eventually you will fall asleep. Out of sheer boredom, I assume!