Get complete protection for your box spring against dust mite allergens and bedbugs… at a Surprisingly Affordable Price and from National Allergy, the trusted source. This cover will minimize exposure to dust mites, thereby reducing or eliminating any allergic symptoms you or your kids are currently experiencing. As an added bonus, the BedCare™ Economy Zippered Box Spring Cover also protects against bed bugs and is comfortable and durable. Eliminates exposure to dust mites and other allergens – a big plus for allergy sufferers! Sleep more deeply, breathe more freely, and feel better when you wake up. Bed Bug Proof: As an added bonus, this bedding set is also bedbug proof. Made with patented BugShield system with an auto lock zipper that will not backtrack when closed. The BugShield Bug Blocker is an added barrier that closes the last inch or so of the zipper from below to create a fabric shield under the zipper closure to doubly ensure that bed bugs will not be able to get in or out of the encasing. All sizes fit mattresses up to 9-inches thick Twin: 39 in W x 75 in L Cal Twin: 84 in W x 37 in L Full: 54 in W x 75 in L Queen: 60 in W x 80 in L King: 78 in W x 80 in L 300 thread count Zip closure Dust mite proof Bedbug proof Warranty available Imported Material & Care Polypropylene Machine washable