4-Fold Hospital Mattress 4-Fold Hospital Mattress Waterproof cloth: no liquid can infitrate through the surface. Cleanging the cloth is easy Can be kept clean and hygienic and permeable to air for a long time. Size: According to the cutomers's demands Material: waterproof, moldproof, ventilate cover, sponge, palm fiber Color: Different colors are available according to customer's requirements.