To keep our protectors cool and noiseless the surface material is made with soft brushed microfibre back coated with a breathable hypoallergenic and waterproof layer protection. Constructed with beautiful quilted diamond pattern design walls between top and bottom layers prevent down alternative filling from clumping and shifting and assures that it remains evenly distributed below you cushioning your pressure points while you slowly drift off into a heavenly sleep. Protects against allergens dust mites bacteria perspiration urine and fluids.