Medical anti-decubitus mattresses help prevent pressure sores caused by prolonged lying in bed, and are suitable for medical and healthcare institutions. Medical anti-decubitus mattress components are silent air pump, independent inflatable air chamber, waterproof breathable bed cover and so on. It works on the principle of multiple air chambers alternately, making the patient's skin alternately in contact with the air, gas circulation, reducing heat and moisture, creating a comfortable sleeping environment.