The High Density Foam Gap Filler Cushion is a versatile product designed for Twin to King Bed Headboard or Wall Gap Converter solution. This innovative filler pillow ensures a comfortable and secure fit for your mattress, preventing air leakage and restoring air pressure to its original level. Made from high-quality foam, the cushion provides excellent cushioning, allowing your mattress to maintain its original shape and supporting your body's natural curves. Its soft and comfortable surface makes it suitable for all types of sleepers, promoting a deep and restful night's sleep. The 200cm long cushion is ideal for covering long gaps in your bed, ensuring no part of your mattress is exposed. Its easy-to-install design, complete with adhesive backing and mounting instructions, makes it quick and straightforward to use. Say goodbye to sagging headboard issues and hello to a well-rested you!