【Good sleep is inseparable from a good pillow】 - The ergonomic pillow with memory foam design perfectly supports your head, neck, shoulders, and back. The ergonomic pillow adopts a unique butterfly shape design and a hollow center design. The center cavity design provides proper support for your head, naturally fits the curve of your neck, and aligns the spine, allowing for more efficient support, stretching, and relaxation of the entire body’s spine. 【Slow rebound high-quality memory foam pillow】 - The neck pillow is made from high-density CertiPUR-US and Oeko-Tex certified slow rebound memory foam, non-toxic and odorless. The contour pillow will not flatten or lose its firmness after prolonged use. This bed pillow is firm enough to support your head, neck, shoulders, and back muscles, yet soft enough to ensure your body gets the maximum comfort and relaxation. The neck pillow core can adjust its shape based on your sleeping position. 【Two height options for the pillow】 - Our memory foam neck pillow has two different curve heights on each side (high: 10cm/12cm), so you can choose the side that best suits your sleeping posture for a comfortable night’s sleep. The neck pillow, which alleviates neck pain, is suitable for various sleeping positions, including side sleeping, stomach sleeping, back sleeping, and low pillow usage. 【Designed for Arm Support】 - This memory foam pillow features a unique arm support area, specifically designed to relieve pressure on your arms while side sleeping. Whether at home, in the office, or during rest breaks, this pillow provides comfortable arm support, helping to prevent numbness or discomfort. It's the perfect choice for daily relaxation or quick naps. 【Breathable Pillowcase】 - The sleeping pillow features a high-quality pillowcase that is soft and fits snugly with the pillow core. Featuring 3D air holes, it enhances airflow for a refreshing sleep experience. The dustproof inner cover effectively prolongs the service life of the pillow core. The invisible zip is convenient for replacement and cleaning - just toss it in the washing machine.