Good pillow elements: 1 Basic shape. The groove design is lower in the middle than the surrounding area. In addition to the moderate support of the head, it can also gently support the neck. The left and right sides are thicker and can automatically adapt to the side sleeping height of the human body during the middle of sleep. Each part of this shape guarantees your ideal sleeping position. 2 The right height. Highly suitable for the blood circulation of the neck, providing enough oxygen to the brain, wake up and the brain is more clear and full of spirit. 3 Good filling material. The filling determines the softness and efficacy of the pillow. (My double-sided double-use pillow has two sides, soft and hard, you can choose soft and hard surface according to your own preferences.) Generally, natural materials are better. Kapok, fragrant velvet, buckwheat hull, cotton, flowers, etc. It is also possible to add good Chinese herbal medicines to increase the effectiveness of the pillow. Silkworm, cassia seed, lavender, apocynum, scorpion, ginkgo leaf, etc. Carbon fiber fabric is a type of textile material that is made from carbon fibers. It is known for its high strength-to-weight ratio, making it incredibly lightweight yet strong. The fabric is woven from carbon fibers, which are thin strands of carbon atoms that are highly durable and stiff. Carbon Fiber Bi-Direction Fabric,Carbon Fibre Cloth Roll,Carbon Fiber Bidirectional Fabric,Fire Resistant Carbon Fiber Fabric Jiangyin Phecda New Material Technology Co., Ltd , https://www.nbphecdacomposite.com