Silk Comforters & Wool Mattresses (Absorption Vs Adsorption) Part 2

Posted on Sep 21, 2015

As a worthy comparison to silk, wool fibers readily absorb moisture but are not hollow, as opposed to silk, which absorbs moisture thus the difference Absorption and Adsorption. Wool can absorb almost one-third of its own weight in water. Wool absorbs sound like many other fabrics, such as thick curtains in music halls or theatres. Wool ignites at a higher temperature than cotton and some synthetic fibers. It has a lower rate of flame spread, a lower rate of heat release, a lower rate of combustion, and does not melt or drip. Wool gets charred which is insulating and self-extinguishing, and it contributes less toxic gases and smoke than other types of carpeting. Wool carpets are specified and required often times, for high safety environments, such as trains, aircraft, and other means of public transportation. It is regularly used to make clothing for firefighters, soldiers, and other occupations that are exposed to a high possibility of danger or fire.


Wool is popular and known for its practicality. Wool offers a number of features and advantages including stain resistance, appearance stability, and color retention and fast texture recovery. In addition, wool also provides a large number of environmental benefits. It is flame-resistant, mildew resistant, as well as water repellant. Wool is by far the safest and best choice for your home and for other environments such as hotels, and commercial spaces and is used to guard against the danger of fire. Wool is the best natural fiber in existence that resists flame. Unlike many man-made fibers, which often melt and stick when on fire, wool smolders instead of bursting into open flames, and it generally self-extinguishes when the source of fire is removed. Not only does wool absorb moisture, but also it doesn’t create mildew while containing the moisture. This is an important quality since mold and mildew are considered to be some of the most negative factors in regardings to toxic immune system responses.

Silk, on the other hand, is not as elastic as wool nor is it as resistant to soiling or staining when compared to high-grade wool. In addition to the durability of the fiber, the elasticity and the high content of lanolin in natural, untreated wool offers a product that is easily maintained and can be easily cleaned.


Wool not only absorbs moisture, but it also repels liquids, due to the fact that the scales on the outside of the fiber cause liquids to roll off the surface instead of being absorbed. For example, if you accidentally spill water on a wool rug, it generally will not be absorbed. It will remain on the surface of the rug. If you’re caught in the rain, and your wearing a wool garment, it takes some time before the rain penetrates. 

In addition, water repellent stains do not easily saturate a carpet or a mattress made with wool, as long as they’re dealt with in a timely manner. As long as wool is not bleached or stripped of its lanolin, it retains its naturally stain-resistant qualities. Wool is environmentally safe, and its non-allergenic qualities have been demonstrated to be hygienically safe even in medically sensitive environments. Wool also does inhibt the growth of dust-mites or bacteria, thus its increasing use in Natural Bedding. Wool can also contribute to air purity in buildings by absorbing polluting gases. Another great feature and generally not known bonus of wool is that is offers superior sound and insulating properties.

Haiku Designs offers all natural Sleep Systems, including mattresses, comforters, pillows and sheet sets, made with Organic Wool, Organic Cotton and Organic Latex. Organic wool refers to wool that has been processed naturally without the use of harsh chemicals or dyes. Another distinct advantage of organic wool is that it is naturally flame-retardant, which means that Haiku’s mattresses have wool layers that meet all Federal Flammability requirements, without the use of toxic sprays or chemicals as fire-retardants. To learn more visit or come by our Boulder, Col showroom.


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