how to wash foam mattress pad

{"cid":"91191075","title":"Cotton \/ Polyester Memory Foam Sofa Dog Bed ,\u00a0Mechanical Wash Foam Mattress Dog Bed\u00a0","imgUrl":"https:\/\/img.chinax.com\/nimg\/f9\/04\/87f23fa990ea25e200b425b9d972-200x200-1.jpg","attrs":{"Price":"Negotiation","Model Number":"S\/M\/L","Minimum Order Quantity":"100pcs per size","Delivery Time":"5 work days for sample; 35 work days for shipment","Certification":"Oeko-Tex Standard 100, SGS","Place of Origin":"China","Packaging Details":"polybag+tag","Payment Terms":"L\/C, T\/T, Western Union","Supply Ability":"50000pcs per month","Material":"Memory Foam Slice for Seat","Size":"S,M,L","Color":"Grey and Mint","Packing":"Poly bag with Header","Design":"Button for 2 way use","Type":"Pet Beds & Accessories","Feature":"Eco-Friendly","Logo":"Customized Logo","Label":"care label ect"}}

{"cid":"91224835","title":"8 Inch Washable Cover Layer Changeable Pocket Spring Memory Foam Hybrid Mattress for Hotels and Homes","imgUrl":"https:\/\/img.chinax.com\/nimg\/db\/d1\/2fa312d08892839344ea99be5f39-200x200-1.jpg","attrs":{"Price":"90-145U.S. dollar $","Brand Name":"VERNON","Model Number":"VN5019","Minimum Order Quantity":"10 Pieces","Delivery Time":"15-25days","Place of Origin":"Bangladesh","Payment Terms":"L\/C,T\/T","Supply Ability":"Monthly production 15000 pieces","Packaging Details":"vacuum compress and wooden pallet packing or rolled up","Thickness":"8 inchs","Material":"Knitted fabric, foam, pocket spring","Size":"TW, TXL, F, Q, K, CK, and custom size","Application":"Home, hotel, apartment, inn, dormitory","Warranty":"10 years","Logo":"OEM logo","Feature":"washable top, changeable layers","Wire Gauge":"2.0mm+2.3mm(edge)","Color":"White","Hardness":"Firm","Certification":"16 CFR 1632\/1633 \/ OEKO-TEX Standard 100","Firmness":"medium"}}