Looking for the Best Mattress Extender available to buy right now on Amazon but don’t want to have to do all the research on the pros and cons of the different types of Mattress Extender?
Pop Expert have put together this list of the top 10 selling Mattress Extender on Amazon – sorted by overall popularity and positive consumer reviews.
The Pop Expert list of top selling Mattress Extender is the ideal place to start when you are trying to find the Best Mattress Extender for your neeeds.
Popular Mattress Extender on Amazon
Details on the Best Mattress Extender
Bestseller No. 1
DEEPSHARK Mattress Gap Filler, Bed Gap Filler for King,Mattress Extension Filler for Headboard Seams, Bed Space Space Cracks White(78"×6"×12", King)
- WIDER GAPS CAN BE CLOSED- SOLVE YOUR PROBLEMS FALLING OUT: A variety of different sizes of bed gap filler wall side to meet your needs for different occasions. Bed gap fillers are available in three different widths (4", 6", 8"). Our bed mattress extender will keep pillows, your belongings from falling through the bed gap. Say goodbye to lost items.
- 45D FOAM FITS THE SEAMS OF YOUR BED: To create a flatter and more comfortable bed, we use a resilient 45D foam. The mattress extender seamlessly conforms to the contours of your mattress, ensuring a perfect fit and enhanced comfort. Our DEEPSHARK headboard gap filler ideally retains its shape after prolonged use.
- HIGH QUALITY WHITE COVER: The cover of the bed space filler is made of silk/cotton blended fabric and adorned with an exclusive pattern. It offers superior breathability, a delicate feel and exceptional durability. Additionally, it is removable and washable so it can be easily cleaned and is machine washable.
- SUITABLE FOR MULTIPLE USES: This bed wall gap filler is flexible and highly moldable, available in multiple sizes. It can be customized to fit different needs, such as as a headboard space filler, a mattress extension filler. Adding extra comfort and functionality to your bed.
- PLEASE NOTE THAT: The recovery time of the product depends on the placement time after opening the package. You need to place the filler for 24-115 hours to restore it to its original state. Any questions after opening the product, or any other inquiries, please feel free to contact us. We will continue to track your needs through Amazon.
On Sale!Bestseller No. 2
Vekkia Queen Bed Wedge Pillow for Headboard Gap – 0–6" Mattress Gap Filler with Supportive Comfort Foam & Large Side Pockets – Prevents Lost Pillows & Items, Washable Cover (Gray 60"x10"x7")
- Gap Filler: Closes gaps up to 6" between headboard and mattress to prevent pillows and items from slipping
- Balanced Support Foam: High-density foam provides firm support without feeling too hard, offering comfortable cushioning for head, neck
- Ergonomic Design: Concave wedge surface gently lifts pillows for better head, neck, and shoulder alignment
- Convenient Pockets: Oversized side pockets keep phones, glasses, remotes, and books within reach
- Easy Care Cover: Removable polyester cover with durable zipper, machine washable to stay fresh and clean
$24.64
−$1.24
More Details
Bestseller No. 3
CHERRYARN Bed Gap Filler for Headboard & Wall, Mattress Extender Pillow with Removable Cover & Memory Foam, Fills Gaps Between Mattress and Headboard, Stops Items Falling (Gray, Twin Size)
- 【Stop Losing Things Behind Bed!】Tired of losing phones, remotes, or pillows in the gap between your mattress and headboard? Our Bed Gap Filler creates a seamless bridge, stopping valuables from disappearing. Made with conforming memory foam, it perfectly fills that annoying void. Wake up to a cleaner room and say goodbye to frustrating searches!
- 【Memory Foam Comfort & Support】Experience superior comfort while reading or relaxing in bed! Our filler uses body-molding memory foam that provides gentle, supportive cushioning against hard headboards or walls. It cradles your back and neck, transforming your bed into a more comfortable and cozy retreat for ultimate relaxation.
- 【Machine-Washable Removable Cover】Keep your sleep space fresh and clean with ease! The soft, breathable cover features a convenient zipper for quick removal and is machine washable. Simply toss it in the wash to maintain a hygienic barrier against dust and allergens. No complicated cleaning – just effortless maintenance.
- 【Fits All Beds: Twin, Queen, King】Designed for versatility! This gap filler adapts to most bed sizes – Twin, Queen, King – and effectively fills gaps from narrow to wide (up to 10 inches!). The memory foam expands to fit the space snugly, ensuring a custom look without sliding or shifting. Easy setup, instant results!
- 【Multi-Use Home Solution】This versatile solution also works as a bed extender, a sofa armrest gap filler, or a cozy window seat cushion. Its minimalist design blends seamlessly with any home decor. It’s a smart investment in comfort — solving multiple household problems with one simple product for unmatched convenience and relaxation.
Bestseller No. 4
DEEPSHARK Bed Gap Filler for King Mattress, High-Density 45D Sponge, Removable and Washable Cover, Mattress Extender Filler for Headboard Gap, Bed Space Crack, Wall(78"×6"×12", King)
- 𝐁𝐫𝐨𝐚𝐝𝐞𝐫 𝐒𝐢𝐳𝐞 𝐒𝐞𝐥𝐞𝐜𝐭𝐢𝐨𝐧: our bed gap filler for headboard accommodate different mattress widths- 39", 54", 60", 78", and mattress size-Twin/Twin XL, Queen, Full, King. 64 size options perfectly fills the bed crack. Keep pillows, remote controls, pets, glasses and others on your bed and from falling out.
- 𝐖𝐢𝐝𝐞 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐑𝐚𝐧𝐠𝐞: the bed gap filler is designed for the gap between your mattress and headboard, mattress extender, wall edge, or mattress gap between 2 mattress. "Wider mattress" with our bed gap filler provides you with a more restful sleep and make your home more cozy.
- 𝐄𝐚𝐬𝐲-𝐂𝐥𝐞𝐚𝐧𝐢𝐧𝐠 𝐃𝐞𝐬𝐢𝐠𝐧: the appearance of the bed crack filler is made of breathable linen fabric that is soft and skin-friendly. The cover of the gap filler comes with a durable zipper, which is removable and easy to be clean, keeping your bed neat and tidy. (Wash Tips: Tumble dry on a low heat or air dry.)
- 𝐒𝐮𝐩𝐞𝐫𝐢𝐨𝐫 𝐐𝐮𝐚𝐥𝐢𝐭𝐲: the headboard gap filler is lined with high-density 45D sponge, high resilience, more comfortable than other sponges and will not collapse. Warm Tips: due to the nature of sponges, compression packaging is required. The bed space filler takes 48-72 hours to fully expand after unpacking.
- 𝐏𝐫𝐞𝐦𝐢𝐮𝐦 𝐂𝐮𝐬𝐭𝐨𝐦𝐞𝐫 𝐒𝐞𝐫𝐯𝐢𝐜𝐞: we insist on providing our customers with high quality products. If you receive any quality problems with the mattress extender, please contact us in time and we will provide you with the most optimal after-sales service.
Bestseller No. 5
DEEPSHARK Mattress Gap Filler, Bed Gap Filler for Twin, Bed Gap Filler Mattress Extension Filler for Headboard Seams, Bed Space Cracks White(39"×4"×6", Twin/XL)
- WIDER GAPS CAN BE CLOSED- SOLVE YOUR PROBLEMS FALLING OUT: A variety of different sizes of bed gap filler wall side to meet your needs for different occasions. Bed gap fillers are available in three different widths (4", 6", 8"). Our bed mattress extender will keep pillows, your belongings from falling through the bed gap. Say goodbye to lost items.
- 45D FOAM FITS THE SEAMS OF YOUR BED: To create a flatter and more comfortable bed, we use a resilient 45D foam. The mattress extender seamlessly conforms to the contours of your mattress, ensuring a perfect fit and enhanced comfort. Our DEEPSHARK headboard gap filler ideally retains its shape after prolonged use.
- HIGH QUALITY WHITE COVER: The cover of the bed space filler is made of silk/cotton blended fabric and adorned with an exclusive pattern. It offers superior breathability, a delicate feel and exceptional durability. Additionally, it is removable and washable so it can be easily cleaned and is machine washable.
- SUITABLE FOR MULTIPLE USES: This bed wall gap filler is flexible and highly moldable, available in multiple sizes. It can be customized to fit different needs, such as as a headboard space filler, a mattress extension filler. Adding extra comfort and functionality to your bed.
- PLEASE NOTE THAT: The recovery time of the product depends on the placement time after opening the package. You need to place the filler for 24-72 hours to restore it to its original state. Any questions after opening the product, or any other inquiries, please feel free to contact us. We will continue to track your needs through Amazon.
Newest Mattress Extender
New
Headboard Gap Filler Mattress Premium Bed Extender Headboard Cushion Extension Gap Between Headboard and Wall Bed(135x5x10cm/53x
- 【Premium Quality Material】: Experience unparalleled comfort and support with our premium linen mattress pad. Breathable, soft, and designed to last, the interior boasts high-density sponge padding. It offers excellent density and resilience for long-lasting comfort against your headboard, making it the ideal headboard gap filler and queen-sized bed gap pillow.
- 【Close Gaps】: Eliminate the hassle of falling items and enhance the aesthetics of your bedroom with our premium mattress extender. Expertly designed to close gaps from 0 to 30 cm, it perfectly seals the gap between your mattress and the headboard or wall. A must-have for any bed, it serves as an essential bed wedge gap filler and a mattress wedge gap filler.
- 【Wide Range of Options】: Our bed filler is available in various lengths, widths, heights, and colors, allowing you to find the perfect combination for your bed. Whether it's a double or single bed filler, it integrates seamlessly with the mattress, eliminating the risk of shifting and effectively filling bed seams.
- 【Easy Maintenance】: The mattress extender's zippered cover is removable and washable to keep your mattress clean and tidy. This feature not only makes cleaning easier, but also extends the life of your mattress pad and ensures your bed is neat and organized.
- 【High-quality customer service】: If you have any issues, our dedicated customer service team is ready to provide exceptional after-sales support. The headboard pillows compress upon shipment and fully expand within 12-24 hours, ready to brighten your sleep and your space.
New
XZFRYUI Bed Gap Filler Mattress Extender Filler 47.2x3.1x7.9in（LxWxH） Headboard Pillow Close Gap Between Mattress Headboard and Wall for Full/Twin/Queen/Cal King/King BedGreige
- Eliminate Annoying Bed Gaps & Prevent Lost Items：Specifically designed to close gaps from 1.2 to 15.7 inches between the mattress and headboard, wall, or footboard, this extender effectively stops pillows, phones, and other small items from slipping through, so you never lose anything again.
- Premium Comfort with Breathable Fabric & High-Density Sponge：Crafted from soft, breathable linen fabric and filled with high-resilience, high-density sponge, our gap filler offers lasting comfort and reliable support—perfect for leaning back comfortably against your headboard.
- Customizable Fit for Most Bed Sizes：Available in multiple lengths, widths, heights, and colors to seamlessly match Full, Twin, Queen, Cal King, or King beds. The filler stays securely in place and won’t shift during sleep or use.
- Removable & Machine-Washable Cover Zipper：Featuring a zippered, machine-washable cover for easy cleaning and maintenance. The zipper lock keeps the cushion tightly closed and maintains stuffing integrity, helping your bed always look neat and fresh.
- Easy Setup & Quick Expansion — Compressed for Shipping：To save space, the gap filler arrives compressed in a box. Simply unbox and allow 12–24 hours for it to fully expand. Should you have any questions, our support team is always ready to assist.
New
XZFRYUI Bed Gap Filler Mattress Extender Filler 74.8x9.8x2in（LxWxH） Headboard Pillow Close Gap Between Mattress Headboard and Wall for Full/Twin/Queen/Cal King/King BedBeige
- Eliminate Annoying Bed Gaps & Prevent Lost Items：Specifically designed to close gaps from 1.2 to 15.7 inches between the mattress and headboard, wall, or footboard, this extender effectively stops pillows, phones, and other small items from slipping through, so you never lose anything again.
- Premium Comfort with Breathable Fabric & High-Density Sponge：Crafted from soft, breathable linen fabric and filled with high-resilience, high-density sponge, our gap filler offers lasting comfort and reliable support—perfect for leaning back comfortably against your headboard.
- Customizable Fit for Most Bed Sizes：Available in multiple lengths, widths, heights, and colors to seamlessly match Full, Twin, Queen, Cal King, or King beds. The filler stays securely in place and won’t shift during sleep or use.
- Removable & Machine-Washable Cover Zipper：Featuring a zippered, machine-washable cover for easy cleaning and maintenance. The zipper lock keeps the cushion tightly closed and maintains stuffing integrity, helping your bed always look neat and fresh.
- Easy Setup & Quick Expansion — Compressed for Shipping：To save space, the gap filler arrives compressed in a box. Simply unbox and allow 12–24 hours for it to fully expand. Should you have any questions, our support team is always ready to assist.
New
XZFRYUI Bed Gap Filler Mattress Extender Filler 59.1x7.9x5.9in（LxWxH） Headboard Pillow Close Gap Between Mattress Headboard and Wall for Full/Twin/Queen/Cal King/King BedDark Gray
- Eliminate Annoying Bed Gaps & Prevent Lost Items：Specifically designed to close gaps from 1.2 to 15.7 inches between the mattress and headboard, wall, or footboard, this extender effectively stops pillows, phones, and other small items from slipping through, so you never lose anything again.
- Premium Comfort with Breathable Fabric & High-Density Sponge：Crafted from soft, breathable linen fabric and filled with high-resilience, high-density sponge, our gap filler offers lasting comfort and reliable support—perfect for leaning back comfortably against your headboard.
- Customizable Fit for Most Bed Sizes：Available in multiple lengths, widths, heights, and colors to seamlessly match Full, Twin, Queen, Cal King, or King beds. The filler stays securely in place and won’t shift during sleep or use.
- Removable & Machine-Washable Cover Zipper：Featuring a zippered, machine-washable cover for easy cleaning and maintenance. The zipper lock keeps the cushion tightly closed and maintains stuffing integrity, helping your bed always look neat and fresh.
- Easy Setup & Quick Expansion — Compressed for Shipping：To save space, the gap filler arrives compressed in a box. Simply unbox and allow 12–24 hours for it to fully expand. Should you have any questions, our support team is always ready to assist.
New
XZFRYUI Bed Gap Filler Mattress Extender Filler 70.9x3.9x2in（LxWxH） Headboard Pillow Close Gap Between Mattress Headboard and Wall for Full/Twin/Queen/Cal King/King BedBlack
- Eliminate Annoying Bed Gaps & Prevent Lost Items：Specifically designed to close gaps from 1.2 to 15.7 inches between the mattress and headboard, wall, or footboard, this extender effectively stops pillows, phones, and other small items from slipping through, so you never lose anything again.
- Premium Comfort with Breathable Fabric & High-Density Sponge：Crafted from soft, breathable linen fabric and filled with high-resilience, high-density sponge, our gap filler offers lasting comfort and reliable support—perfect for leaning back comfortably against your headboard.
- Customizable Fit for Most Bed Sizes：Available in multiple lengths, widths, heights, and colors to seamlessly match Full, Twin, Queen, Cal King, or King beds. The filler stays securely in place and won’t shift during sleep or use.
- Removable & Machine-Washable Cover Zipper：Featuring a zippered, machine-washable cover for easy cleaning and maintenance. The zipper lock keeps the cushion tightly closed and maintains stuffing integrity, helping your bed always look neat and fresh.
- Easy Setup & Quick Expansion — Compressed for Shipping：To save space, the gap filler arrives compressed in a box. Simply unbox and allow 12–24 hours for it to fully expand. Should you have any questions, our support team is always ready to assist.