Pillow: Get a memory foam cushion. Ergonomic design: Featuring a neck curve design which is suitable for different sleeping positions. Anti-bacterial cover: With a dustproof, breathable and wear-resistant bamboo cover with a zipper for easy removal and cleaning. 40-degree elevation: Perfect for offering neck support. Size: 50cm x 30cm. Comfortable: Filled with slow rebound memory foam which aims to relax the head, neck, and shoulder muscle.