Has anyone actually tried counting sheep to fall asleep? Well, I have, and let me tell you: it doesn’t work. I can last for about fifteen sheep before my brain loses interest and switches back to whatever thought or worry was keeping me up in the first place. The act of counting sheep is synonymous with sleep promotion in our culture, along with drinking warm milk and taking a hot shower. Nobody’s quite sure how that happened; it might stem from shepherds of the olden days keeping track of their flocks before bedtime. But regardless of the concept’s origins, the fact remains that counting sheep won’t help a bout of insomnia pass. In fact, it might even exacerbate the problem.
Why Counting Sheep Won’t Work
Oxford University researchers designed a study in 2002 to figure out what presleep behaviors best encourage sleep. They asked forty-one insomniacs do one of three things before trying to sleep: count sheep, imagine a peaceful scene, or go about their usual presleep routine (in other words, think about anything). Those who concentrated on relaxing imagery fell asleep an average of twenty minutes earlier than on any other night during the study. When they counted sheep or engaged in normal thought patterns beforehand, it took them longer to fall asleep. A later study at Oxford (this one conducted in 2003) found that insomniacs tend to think of more unpleasant images than people without chronic sleep problems, which might be why they have trouble relaxing enough to fall asleep. If you compare these results with those of the 2002 study, it would seem that counting sheep can be just as troublesome to your sleeping self as anxious thinking.
But while stress occupies too much of your brain’s attention to keep it from resting, counting sheep actually has the opposite effect. Oxford researchers concluded that the activity doesn’t take up “sufficient cognitive space” within the brain to distract from other thoughts. In other words, counting sheep is so repetitive and boring that most people who try to do it don’t last long enough to see any success. The brain tires of the tedium and moves on to something more stimulating, which just wakes you up more.
