BED PILLOW CARE - CertiPUR US and OETX-TEX100 certified. All product materials are carefully selected, inspected, and well constructed to ensure that the neck pillows will hold up to daily use. Hand wash these pillows every 2 months, or spot clean them whenever necessary. Never put these memory foam pillows in the washing machine or dryer to avoid damage. Memory foam pillows should be replaced every 2 to 3 years. FRESH AND BREATHABLE. Our contour memory foam pillow is encased in Tencel covers that can increase breathability to provide you a cooler sleeping experience. This cutting-edge technology pillow is made of Lyocell and Modal cellulosic fibers that allow up to 400% air permeability ensuring strong ventilation power for fresher and cleaner pillows. This neck and cervical pillow also come with removable and machine washable covers. A PILLOW THAT ADAPTS TO YOU - This ergonomic neck and cervical pillow features an expertly engineered concave shape giving you a high and low end. With two heights to choose from, it can offer firm support for different types of sleepers. Our contour pillow adapts to the natural contours of your body making every pillow unique to its owner. A perfect sleeping pillow for side sleepers. A FIRM HEAD, NECK, AND BACK SUPPORT - This contour memory foam pillow provides incredible support for spine alignment and gives uniform pressure on all head and neck areas. Having proper alignment goes beyond maintaining a good posture — it can also help prevent long-term pain. The quality soothing relief this neck pillow provides gives you long-lasting comfort. CONTOUR MEMORY FOAM PILLOW - The SINOMAX neck and cervical pillow is designed to fit the natural curvature of your body to ensure a high level of comfort and firm support for high-quality sleep. With its premium memory foam, it allows your muscles to relax properly offering natural back support to your body, adjusting to your unique shape promoting a deep restful sleep.