Multi-purpose gap filler design: The pillow not only bridges the gap between the headboard and mattress, preventing items and pillows from falling off the bed effectively. It's tailored for gaps of 2-2.8" inches, ensuring a secure solution and eliminating worries about lost items. High-density foam can easily fill the gap to ensure that your headphones cell phone glasses won't fall into the gap, meanwhile, we have different lengths for you to choose from, you can find the size that perfectly fits the width of your bed. One Size Fits All Beds - Our bed gap filler measures 78.7 inches, making it ideal for king size beds. It can also be easily cut to the desired length for queen and twin size beds, or to fill gaps at the head and foot of the bed and other areas. Foam Fits The Seams Of Your Bed: To create a flatter and more comfortable bed, we use a resilient foam. The mattress extender seamlessly conforms to the contours of your mattress, ensuring a perfect fit and enhanced comfort. Our M Mute Touch headboard gap filler ideally retains its shape after prolonged use. NOTE: The recovery time of the product depends on the placement time after opening the package. You need to place the filler for 24-48 hours to restore it to its original state.