{"product_id":"bed-gap-filler-for-king-mattress-high-density-45d-foam-fit","title":"Bed Gap Filler for King Mattress - High-Density 45D Foam Fit","description":"\u003cp\u003eIn this review the Deepshark bed gap filler is judged on fit, comfort and durability for king beds with a headboard gap. It is aimed at sleepers who want to stop pillows, remotes or small items falling between mattress and headboard and who prefer a simple, removable solution. The single biggest reason to consider it is the high-density 45D sponge core combined with a selection of sizes that aim to close the common 2 in to 12 in bed crack, so it performs as a practical mattress extender rather than a decorative cushion.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroader size selection:\u003c\/strong\u003e Available for mattress widths including 78 in king, the filler comes in many lengths so it can match common mattress sizes and fill the gap accurately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-density 45D sponge:\u003c\/strong\u003e The core uses resilient foam that resists collapse and provides a firmer barrier to keep pillows and small items on the bed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide application range:\u003c\/strong\u003e Designed for gaps at the headboard, between two mattresses, or against a wall, it converts a narrow gap into usable sleep space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemovable, washable cover:\u003c\/strong\u003e The breathable linen cover has a durable zipper that can be removed and machine laundered for easier cleaning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression packed:\u003c\/strong\u003e The filler ships compressed for transport and needs 48 to 72 hours to fully expand to its intended thickness.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe bed gap filler is best for owners of king or other standard mattresses who want a low-effort, physical barrier to stop items and pets from slipping into the headboard gap; its firm 45D sponge is a good match for sleepers who prefer a supportive, stable feel rather than a plush pillow. It is also appropriate for people who appreciate a washable cover to keep the sleep area tidy.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include buyers expecting an ultra-soft, pillow-like top or immediate full expansion out of the box; several buyers report the foam can take time to regain shape and sizing must be chosen carefully to avoid an incorrect fit.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSturdy, high-density foam core that maintains shape better than low-density fillers.\u003c\/li\u003e\n\u003cli\u003eMultiple size options allow a closer fit to mattress width and common bed crack sizes.\u003c\/li\u003e\n\u003cli\u003eBreathable, removable linen cover with zipper makes cleaning straightforward.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompressed packaging requires 48-72 hours to fully expand, so it may not appear full on delivery.\u003c\/li\u003e\n\u003cli\u003eSizing must be chosen carefully; a few users reported receiving incorrect lengths that left the gap unfixed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eDEEPSHARK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCore material\u003c\/td\u003e\n\u003ctd\u003eHigh-density 45D sponge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCover material\u003c\/td\u003e\n\u003ctd\u003eBreathable linen fabric, removable with zipper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended use\u003c\/td\u003e\n\u003ctd\u003eGap between mattress and headboard, mattress extender, wall edge, between mattresses\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable sizes\u003c\/td\u003e\n\u003ctd\u003eFits mattress widths 39 in, 54 in, 60 in, 78 in; 64 total size options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCare\u003c\/td\u003e\n\u003ctd\u003eRemovable cover; tumble dry low or air dry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion time\u003c\/td\u003e\n\u003ctd\u003eApproximately 48-72 hours after unpacking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Deepshark bed gap filler is a practical, value-minded choice for anyone who needs a firm, washable solution to a headboard or mattress gap. With a resilient 45D sponge and many size options it fills the space reliably when the correct size is chosen, though buyers should allow a couple of days for full expansion and double-check dimensions before ordering.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow long until the foam reaches full size?\u003c\/strong\u003e\u003cbr\u003eThe compressed foam normally needs about 48-72 hours to fully expand after unpacking.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I wash the cover?\u003c\/strong\u003e\u003cbr\u003eYes, the linen cover has a durable zipper and is removable; wash and tumble dry on low or air dry for best results.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this work between two mattresses?\u003c\/strong\u003e\u003cbr\u003eYes, it is designed for gaps between two mattresses as well as between mattress and headboard or wall; choose the size that matches your mattress width and gap depth.\u003c\/p\u003e","brand":"DEEPSHARK","offers":[{"title":"Default Title","offer_id":48244231536859,"sku":"B0C1YXTKSW","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71zSEjjDdAL._AC_SL1500.jpg?v=1770921874","url":"https:\/\/gearmusthave.com\/products\/bed-gap-filler-for-king-mattress-high-density-45d-foam-fit","provider":"GearMustHave","version":"1.0","type":"link"}