Natural fiber refers to materials derived from plants, animals, or minerals that can be spun into yarn or thread. Common examples include cotton from the cotton plant, wool from sheep, and silk from silkworms. These fibers are biodegradable and often used in textiles, clothing, and home furnishings due to their comfort and breathability. Natural fibers are generally more sustainable than synthetic alternatives, as they are renewable resources. They can also be processed with fewer chemicals, making them a healthier choice for both the environment and consumers. Popular uses include bedding, clothing, and carpets, highlighting their versatility in everyday life.