Defend your bed from pests and allergens with the ultimate 360° protection of the Bedscape Box Spring Encasement. Engineered with a durable, lightweight jersey fabric, this six-sided zippered box spring cover completely seals your box to eliminate the deep crevices where bed bugs love to hide and breed. Laboratory-tested, patented 3-sided zipper system with Secure Seal®, forms an entry-proof, and escape-proof, barrier that keeps pests, dust mites, and mold entirely out of your box spring. 360° SIX-SIDED COVERS: Completely wraps all six sides of your box spring in an impenetrable, premium fabric shield. By enclosing the top, bottom, and side panels, it eliminates exposed joints and dark hollow spaces, leaving pests with zero place to harbor or lay eggs. PATENTED THREE-SIDED ZIPPER: Outfitted with an innovative, lab-certified 3-sided zipper layout that features a specialized zip-guard mechanism. It is scientifically tested and proven to be 100% bed bug entry-proof, escape-proof, and bite-proof. HYPOALLERGENIC ALLERGEN & BED BUG SHIELD: Creates a microscopic barrier that prevents dangerous allergens, bed bugs, dust mites, pet dander, and mold spores from building up within your bed foundation. An absolute essential for creating a genuinely healthy sleep environment for allergy and asthma sufferers. FOREVER FIT® STRETCH DESIGN: Engineered with premium elasticized stretch properties that flex effortlessly to accommodate box springs ranging from 6 to 10 inches deep. This guarantees a smooth, sag-free, snug layout that makes installation fast and secure. EASY HYGIENE CARE & LAUNDERING: Built tough to withstand hot machine washing up to 130°F (55°C) to deeply sterilize and kill trapped allergens, bacteria, and dust mites. Low-heat dryer friendly alongside your standard bed linens for hassle-free upkeep. KING SIZE: Order 2 Twin XL's CALIFORNIA KING: Order 2 Split California Kings