[Ergonomic Design]: The size of the neck pillow is 60 x 43 x 11/9cm. In the middle of the pillow is a recessed design, which provides the best support and stabilizes the head. When you sleep on your back, it reduces the pressure on the back of your head. When you sleep on your side, there is a proper incision on the edge of your shoulder to reduce pressure on your lower neck. Ideal for those who want to sleep on their back. [Sleep aid]: the orthopedic neck pillows, leaving enough space for the head ----- Hemispherical. Adjust the head to the pillow. And the shoulder parts can bridge the gap between the human body and the pillow when sleeping naturally, reduce shoulder stiffness, and form a perfect support. Get the most comfortable sleep, help you breathe more freely and reduce snoring. [High Quality Memory Foam]: The pillow is made of high density memory foam and has slow resilience. This will provide elastic support, bringing incredible comfort and softness. After long-term use, it will not flatten like traditional pillows, retaining its shape and firmness, providing you with a healthy sleep. [Washable Breathable Pillowcase]: The pillowcase pillow is soft, breathable, and washable. With 3D breathable mesh cover, cotton material, skin-friendly, breathable and absorbent, it can keep your skin dry in a long sleep. [Best choice for you]: There are 2 different contour heights on both sides of the side pillow, which is very suitable for different sleeping positions. It contains no harmful chemicals and looks great. It is a great gift choice for family or friends. Let them sleep soundly.