1. The springy, resilient wool fiber batting structure contains an abundance of air. This fiber/air combination acts to cushion the body and prevent the formation of annoying and often painful pressure points.
2. Wool has the ability to absorb large amounts of moisture vapor without feeling wet and clammy. The average person gives off a pint of water vapor as perspiration during an eight hour sleep period under a comforter. The ability of the fiber to handle this moisture is very important.
3. The wool fibers "natural climate zone" effect is especially advantageous in a pillow. Large quantities of body moisture are produced in the head area. The moisture and the pressure of the head are concentrated in a relatively small area, with head weight and movement tending to force the moisture down into the pillow filling.
4. A study conducted by the Ergonomics Unit at the Polytechnic Institute of Whales confirmed that a wool filled comforter is more comfortable than the equivalent in weight and construction of synthetic comforters. The physiological data showed that:

   	The heat rate under the wool filled comforter was significantly lower 100% of the time.
   	The humidity next to the skin under the wool comforter was significantly lower 71% of the time.
   	The temperature rise of the skin above 91 degrees, which is considered to be the optimum level for sleep comfort, was significantly higher under synthetic filled comforters 80% of the time.

5. Results from a study at the Hohenstein Research Institute in Germany showed similar results. The findings illustrate that it is not just the construction of the comforter that makes it the best fiber to sleep on or under, but that there is an inherent benefit offered by the wool fiber itself.

Only Pure Grow Wool is used in our products.