Casper Sleep Waterproof Mattress Protector, King, WhiteWe felt the protector should be a silent partner in crime: so light and breathable you forget you have it until an emergency makes you thankful you do! In a practical sense, it needed to protect against almost anything and fit snugly on your mattress, without compromising breathability. The Casper mattress protector wont change the comfort of your mattress or affect the temperature. After several rounds of thermal and humidity testing, we settled on the optimal film for spill protection and breathability. It happens to be the same kind used in state-of-the-art outdoor gear. The protectors unique skirting offers a superior balance of stretch and recovery to fit your mattress like a glove accommodating mattresses that are up to 16 inches thick. This 360-degree grip prevents shifting, and the cross-directional stretch and machine directional elastic allows the fabric to move with your mattress instead of popping off. We included Casper labels to indicate the head and foot of the bed and make life easier.ElasticKeep your mattress looking and feeling brand new by guarding against dirt, spills, and normal wear and tearWaterproof & breathable: microscopic pores keep spills out and let air in, so your mattress stays cool, clean, and comfortable for longerThe protector is quiet and doesnt affect the feel or comfort of any sleep surfaceWith unique elastic skirting and a 360-degree grip, it perfectly hugs any mattress up to 16Packaging may varyProduct informationBrandCasperColorWhiteSizeKingFabric TypeElasticSpecial FeatureWaterproofClosure TypeZipperProduct Care InstructionsMachine WashWater Resistance LevelWaterproofAge Range (Description)All AgesMaterialPolyesterModel NameWaterproof Mattress ProtectorManufacturerCasper SleepUPC192472013579 192472016044Global Trade Identification Number00192472013579Product Dimensions17 x 13 x 7.5 inchesItem Weight4 poundsCountry of OriginChinaItem model number951-000240-005