?? Bed Gap Filler Size? Pillow wedge for headboard gap fits perfectly to your bed gap or sofa gap. ? NOTE: As bed crack pillow is vacuum packaging, please remove the vacuum bag, and shake vigorously every place for a while, and headboard space filler will restore its original shape after 48 hours later. ?? Premium quality Material?Mattress extender cover is made of premium quality linen fabric, breathable, delicate touch; insert is filled with upgraded environmental-friendly foam, excellent density and high resilience can give you long-lasting comfort when leaning against the headboard ?? Removable & Washable Cover?Mattress gap filler cover are made with zippered cover which is removable and washable. Zipper lock keeps cushion tight closed and assists in cushion stuffing. ?? More Practical & beautiful? All size include 36 inches, 39 inches, 54 inches, 59 inches, 71 inches and 75 inches (Twin, Full, Queen, King, California King), give you more option. Putting this bed crack pillow during bed gap or sofa gap, will reduce the trouble of dropping things for you, and let your home more beautiful. ?? Multi-purpose Usage?This soft flexible pillow can be used as wedge headboard pillow, bed gap filler, mattress extender, mattress gap filler. Works great between wall and mattress, or as sofa back support cushion. You can even use it as foot rest for under desk.