Wool is a natural fibre, so the colour will look richer in its fibres. Wool also traps heat and acts as a flame retardant, so it can protect your home from fires. Wool also insulates sound better than many man-made fibres. If you're looking for a carpet that will stand the test of time and provide years of protection and comfort, a wool carpet is an excellent choice. However, if price is a critical factor, you may want to consider a blend instead.