The core innovation of ELIYA hotel duvet covers lies in their "anti-shift insert structural design". Different from ordinary duvet covers that only have fixing strings at the four corners, ELIYA adopts a dual fixing system of "six-point positioning + invisible buckles": a total of 6 high-strength fixing strings are set at the four corners and the midpoints of the long sides inside the duvet cover. At the same time, invisible buckles are installed at the corresponding positions on the duvet insert. After the strings and buckles are connected, the duvet insert can be firmly fixed. Even if guests toss and turn frequently throughout the night, the duvet insert will not shift or knot. Hotel tests show that with duvet covers using this structure, the time housekeepers spend tidying bedding can be reduced by 40%, and guest complaints about "duvet insert shift" have dropped by more than 90%. In addition, the opening of the duvet cover adopts a "bidirectional invisible zipper + Velcro edge sealing" design. The zipper length is 20cm longer than that of conventional duvet covers, making it easier for housekeepers to quickly put the duvet insert in; the Velcro covers the edge of the zipper, preventing the metal zipper head from scratching guests’ skin and avoiding accidental unzipping, thus balancing safety and convenience.