This series of mattresses are filled with 3D polyester fiber, which has excellent ventilation and heat dissipation, fully supports human bones, and brings a comfortable and healthy sleeping environment. 3D polyester fiber has good elasticity, good toughness, wear resistance, impact resistance, and is not easy to be scratched. The fiber mattress is natural and environmentally friendly, with good air permeability, and the appropriate resilience makes the human body in a relaxed state during rest and improves sleep quality.