Wool is widely used and it is the main component of higher quality pile area rugs. Most wool comes from sheep, but it can also come from goats, llamas or alpaca. Wool is a resilient material and it has greater durability than synthetic material. Wool absorbs and retains dyes amazingly well. It is naturally resistant to fire, water and stains. Wool area rugs also naturally resist dust mites, which is important to people with allergies, because dust mites can aggravate allergies.
Cotton is a natural fiber that is strong and durable. Area rugs made of cotton can easily absorb and retain a wide variety of dyes, which provides the user with a multitude of color choices. In rug making, cotton is often used in conjunction with wool. Area rugs made with the cotton-wool blend have a nice feel, especially on bare feet. Cotton-wool rugs usually cost less than all-wool rugs, but people should be aware that cotton has a tendency to wear out sooner than wool.