ERGONOMIC SHAPE PILLOW 【Ergonimic Design】 --The contour pillow maintains the natural curve of the neck with cervical contour to support your neck properly. --The center cavity of the neck support pillow helps to cradle the head for optimal support --The wedge extension of the ergonomic pillows helps to support the thoracic spine. You will fall asleep faster and deeper. It is possible for you to experience some discomfort during the first two weeks while your body is trying to adjust to the correct position. Try it for a new level of comfort whether you are back sleeper, stomach sleeper or side sleeper. Special breathable inner cover, which more effectively extends the service life of the memory foam core. TIPS -Certification for safety and performance, the memory foam is certified by CertiPUR-US. - In case you experience an odor, please don't worry, it is a "Fresh Foam" odor, it's not harmful. The odor will dissipate within 3-5days from when the foam is unpacked and aired out. - Store in a Cool and Dry Area Directly away from Sunlight. ATTENTION: DO NOT PUT FOAM PILLOW IN WASHING MACHINE!