This memory foam pillow relieves neck pain. [Concave hollow design for ear and back areas, new modal cotton material, adjustable pillow cover]

[New Modal Cotton & Double Pillowcase Included] The pillowcase is made with new modal cotton. Modal fabric is smoother and cooler to the touch than cotton, making it ideal for the Japanese climate. It's soft to the touch, breathable, moisture-wicking, smooth, and environmentally friendly. It quickly absorbs sweat and dries quickly. The moisture-wicking and breathable new modal cotton pillowcase is comfortable in the summer and warm and cozy in the winter, making it suitable for all seasons. This pillowcase includes an additional inner cover instead of a single pillowcase. The inner cover prevents stains and urethane foam deterioration. Simply unzip the outer cover and remove it for washing. Note: The pillow itself cannot be washed. [New Design & Concave Hollow Design for Ears and Back of Head] This pillow's concave design in the center stabilizes your head, reducing strain on the head and providing a pressure-free sleeping experience. The concave design on both sides reduces pressure on the temples and ears, even when sleeping on your side, and conforms to your body to straighten your bones. The arched shape fits the curve of your shoulders and back, allowing you to naturally curve your head when you rest it, providing comfort for your neck and shoulders. [Sleep comfortably in any position & arm support area] This pillow's slightly higher sides make it easier to return to the ideal sleeping position on your back and reduce strain on your shoulders and arms when sleeping on your side. It keeps your neck, shoulders, and head stable without forcing you into an awkward position. It reduces shoulder fatigue and stiffness when you wake up in the morning, allowing you to start your day feeling relaxed. The arm-fit curves support your hands when sleeping on your side or stomach, eliminating the need to worry about where to place them. This memory foam pillow allows you to sleep comfortably in any position, whether you sleep on your side, back, or stomach.