35% Tencel 65% Microfiber 5S Slow Rebound This memory foam pillow for neck support features a unique slow rebound design that shapes automatically when pressed and rebounds within 5 seconds. It ensures non-deformation all year round, providing a floating on water or clouds feeling with no pressure on the skin. The contour pillow does not compress the auricle like other common pillows. Washable Pillowcase & Breathable Pillow¡¿Our neck support pillow comes with a soft and comfortable pillowcase made of breathable fabric with mesh sides that can be easily removed and machine-washed. The pillow also boasts excellent moisture absorption performance and breathability, maintaining consistent firmness throughout the year. 2 Available Heights for Any Sleep Style.This memory foam pillow is designed with two available neck support heights to cater to different sleep styles. Measuring 27.5 x 15.7 x 4.7/3.5 inches (L x W x H), this ergonomic pillow is suitable for side sleeping, supine, stomach sleeping, back sleeping, and low pillow sleepers.Pillow to Relieve Neck Pain Our contour pillow automatically adjusts to the body curve to alleviate muscle tension and physical and mental pressure. The personalized shape of this cervical pillow conforms to the head, neck, and shoulders, reducing pain and shoulder pressure for a restful night's sleep.