Article in English: The first step to cleaning your mattress is vacuuming. This will remove mites, dust, dead skin, hair, and other debris from the mattress. Use a wide brush attachment to vacuum the top of the mattress. Use the long upholstery nozzle to get into cracks, to vacuum edges and piping, and to clean the sides and corners. Before vacuuming, make sure the nozzle and brush attachments are completely clean. Any recent spills that are still wet should be cleaned immediately. Get a clean cloth damp with cold water. Blot the spill with the damp cloth. Do not rub or scrub the spill, as this can push it farther into the mattress. Keep blotting until you’ve absorbed all the excess liquid. Combine 2 tablespoons (30 ml) of hydrogen peroxide and 1 tablespoon (15 ml) of liquid dish soap in a small bowl. Use a spoon to stir them together and creates suds. Dip an old toothbrush into the suds. Gently scrub the suds into affected areas of the mattress. Wipe away excess cleaner with a clean, damp cloth.  For a memory foam mattress, use only the smallest amount of cleaner possible, because memory foam should never get wet. This solution will be effective to treat stains from dirt, food, drinks. Spray some enzyme cleaner onto a clean cloth. Blot the stain with the cloth to saturate it. Let the enzyme cleaner sit for about 15 minutes. Blot the area with the same cloth to remove the stain. Blot the area with a clean cloth that’s damp with cold water.  Don’t spray liquid cleaners directly onto the mattress. Mattresses aren't designed to get wet, especially memory foam, so use as little cleaner as necessary to treat the stains. An enzyme cleaner will break down the proteins in blood, urine, sweat, vomit, and other biological stains. It will also be effective at treating grease and oil stains. Once you’ve dealt with stains, you can clean and deodorize the entire mattress. To do this, sprinkle a generous dusting of baking soda over the entire surface of the mattress.  To give your mattress a fresh smell, stir five drops of your favorite...

Summary in Vietnamese:
Hút bụi. Xử lý vết nước đổ. Loại bỏ vết bẩn. Loại bỏ vết bẩn sinh học bằng dung dịch làm sạch enzyme. Rắc muối nở lên nệm. Chờ một thời gian để muối nở hút mùi. Hút bụi nệm thêm lần nữa. Phơi nệm ngoài không khí.