how to clean foam mattress topper

{"title":"Bedroom Gel Memory Foam Topper With Washable Cooling Cover","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/e4\/bf\/6bac7a7290f7e1f13cb3bc9a7941-200x200-1.jpg","attrs":{"Brand Name":"Union-win","Model Number":"CD211129023B","Minimum Order Quantity":"100PCS","Certification":"CertiPur-US \/ OEKO-TEX","Place of Origin":"China","Payment Terms":"T\/T","Supply Ability":"10000sets\/month","Packaging Details":"Vaccum Compress +Roll Up+Carton","Name":"Memory Foam Mattress with Washable Cooling Cover","Material":"Gel Memory Foam + Memory Foam (Ergonomic ) + High Density Foam","Fabric":"Quilted Jacquard knitted fabric \/ Polyester","Room Type":"Bedroom","Color":"White \/ Black \/ Grey\/Blue\/Pink\/Customized Color","Size":"Thickness 25cm, Single\/Twin\/Double\/Queen\/King All sizes could be customized!","Certificates":"CertiPUR-US \/ OEKO-TEX \/ SGS \/ BSCI \/ USDA \/ Biopreferred \/ BETA","Package":"Vacuum Compress +Roll Up+Carton.","Sample service":"welcome","HS CODE":"9404210090"}}

{"title":"Closed Cell Foam Camping Mattress Pad Topper Non Water Absorbing","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/0a\/bc\/98e33d0094ab7d4d6a4c56c7cb1b-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"SolidFloat","Model Number":"FKC01","Minimum Order Quantity":"Negotiable","Delivery Time":"15-20 days generally, or depending on your order.","Certification":"CE","Place of Origin":"China","Payment Terms":"L\/C, T\/T","Supply Ability":"Can produce 10000 sets a month","Packaging Details":"Carton Package","Material":"NBR\/PVC","Color":"Customized","Size":"16.5\" x 8.7\" x 1\"","Function":"Gardening, Praying, Baby Bathing, Cleaning, Floor Scrubbing"}}