Mattress

A mattress, comprising:

• a wrapping body, wherein a top of the wrapping body comprises a plurality of cavities independently set with each other;
• a first filling material, wherein the first filling material is arranged in each cavity;
• a second filling material, wherein the second filling material is arranged in each cavity, the first filling material and the second filling material are different materials;
• and
• a third filling material, wherein the third filling material is arranged in each cavity, the first filling material forms a first filling layer, the second filling material forms a second filling layer, and the third filling material forms a third filling layer, each cavity is successively filled with the first filling layer, the second filling layer, and the third filling layer from top to bottom, and the first filling material and the third filling material are made of the same material;
• and
• wherein the first filling material comprises chemical fibers, and the second filling material comprises memory foam or sponge;
• wherein the wrapping body further comprises a side portion, the side portion is arranged at the periphery of the wrapping body and serves as an outward side wall of ones of the cavities arranged at the periphery of the top of the wrapping body to restrict the cavities on the top of the wrapping body, and a plurality of ventilation holes are disposed on the side portion.