Sufficient cotton with excellent moisture absorption and absorbency. 100% natural cotton with excellent moisture absorption and absorbency. The fluffy and comfortable feel of the synthetic fiber is not so much, and it is always smooth and dry. The bed pad is made of cotton cotton (filled) that has been removed from oil and oil. Cotton absorbs water about 21 times more than polyester. Absorbs moisture while you sleep. It also has excellent wicking properties, allowing excess heat to escape and keep you fresh until the morning.