This high-quality U-shaped pillow is usually made of materials such as memory foam and latex. These materials are not only soft and comfortable, but also provide excellent support and effectively protect your baby's cervical spine. The memory foam U-shaped pillow automatically adjusts to the curve of your baby's neck, distributing pressure and preventing neck fatigue. The material is also breathable and dust mite-proof, providing your baby with a good night's sleep. Great!