Natural latex is the best bed material in the mattress. The use of 100% natural latex made of bed, with a high degree of softness and elasticity, and no deformation, not hardening, allows the cervical spine and spine to maintain the most natural and relaxed curve in the sleep. When the blood vessels, nerves, muscles and ligaments are in the absence of oppression, the blood circulation is smooth. It will naturally achieve the effect of deep sleep.