Hypoallergenic Bed Bug Proof Mattress Cover Encasement - Twin Size (Fits 9-11 In. Thick) - Made in the USA Cotton 100% Natural Cotton Fibers (On Sleep Surface) Zippered Cover With Our Advanced Secure Snap Technology To Keep The Bed Bugs Out Soft Breathable Fabric With Waterproof Barrier Easy Care Machine Washable in Warm Water. Tumble Dry On Low Heat. Made In The USA