Bedsheet material is an important factor to consider when shopping for bedding. Percale, with seven letters, is a tightly woven fabric made from cotton or polyester. It is lightweight and breathable, making it a popular choice for sheets. Pima, with four letters, is a type of cotton that is known for its softness and durability. It is also resistant to pilling and fading. Lastly, LINEN, with five letters, is a natural fiber made from flax. It is strong and absorbent, and has a unique texture that many people find comfortable.