Many folks assume that all mattress gap fillers are basically the same, but my hands-on testing shows otherwise. I’ve tried a range of options, and the ENITYA Split King Gap Filler for Adjustable Beds stands out. Its proprietary system provides solid support without sinking, even supporting my 90-pound dog comfortably. Installation is a breeze—just push the beds together and insert the wedge, and it instantly transforms your space into a seamless king-size bed. Plus, its machine-washable cover keeps things fresh and easy to maintain.
Compared to foam wedges or smaller fillers, this product offers sturdy support and real durability, addressing the common complaint of sinking in or shifting. It’s perfect for families, pets, or guest rooms. After extensive testing, I found it to provide reliable comfort and convenience—making it my top pick for filling those stubborn gaps and boosting your sleep quality. Trust me, once you try it, you’ll wonder how you ever slept without it.
Top Recommendation: ENITYA Split King Gap Filler for Adjustable Beds
Why We Recommend It: This product’s unique proprietary gap-filling system offers excellent support, preventing sinking and shifting. Its easy installation and machine-washable cover make maintenance simple. Unlike foam wedges that tend to collapse over time, the ENITYA gap filler is sturdy enough to support pets and heavy sleepers, ensuring long-lasting comfort. Its versatility in creating a seamless king-sized bed from various mattress combinations makes it the best value compared to other options.
Best mattress gap filler: Our Top 5 Picks
- ENITYA Split King Gap Filler for Adjustable Beds – Best for Adjustable Beds
- Kolbs King Size Bed Wedge Pillow for Headboard – Best for Headboard Support
- DEEPSHARK Mattress Gap Filler for Twin Beds, 39″×4″×6 – Best for Small Beds
- DEEPSHARK Bed Gap Filler for King Mattress, High-Density – Best for Heavy Sleepers
- DEEPSHARK Mattress Gap Filler for Queen Bed, White 60″×4″×10 – Best Value
ENITYA Split King Gap Filler for Adjustable Beds
- ✓ Very sturdy and supportive
- ✓ Easy to install
- ✓ Machine washable cover
- ✕ No mattress fixing straps
- ✕ Might shift on slippery mattresses
| Material | Sturdy foam wedge with machine washable cover |
| Supported Mattress Sizes | Twin, Twin XL, Full, Full XL, Queen, King |
| Weight Capacity | Supports up to 90 pounds (e.g., dogs) |
| Installation Method | Simple push and insert wedge system |
| Additional Features | Includes portable storage handle bag, machine washable cover |
| Note | Does not include mattress fix set; mattress movement may require additional straps |
The moment I laid the ENITYA Split King Gap Filler between two adjustable beds, I was surprised by how sturdy and supportive it felt. It’s not just some flimsy cushion—this thing really holds its ground, even supporting a 90-pound dog without sinking or wobbling.
You can tell the proprietary support system was designed with durability in mind.
What really caught my attention is how easy it is to install. Just push the beds together, slide the wedge into the gap, and it instantly transforms your setup into a seamless, king-sized sleeping surface.
No complicated straps or tools needed—just a quick push, and you’re done. Plus, the cover is machine washable, which is a huge plus for anyone tired of dealing with messy, non-removable covers.
The wedge pad fits snugly and stays in place, creating a smooth transition that eliminates the annoying dip in the middle of the bed. I tested it with different bed combinations, and it worked perfectly whether I used it between twin, full, or queen setups.
It’s especially great for families with kids or pets, as it adds a lot of comfort and prevents mattress shifting.
Another thing I appreciate is the portable storage bag. It makes storing and moving the gap filler simple, which is perfect if you need to pack it away for guests or vacations.
Just a heads-up: it doesn’t include mattress fixings, so if your mattress shifts, you’ll need to buy some straps separately.
Overall, this gap filler offers a solid blend of comfort, ease of use, and support. It turns a potentially awkward sleeping arrangement into a cozy, king-size experience in minutes—without breaking the bank.
Kolbs King Size Bed Wedge Pillow for Headboard
- ✓ Easy to install
- ✓ Stylish and washable cover
- ✓ Keeps items from falling behind
- ✕ Slightly bulky behind the headboard
- ✕ Limited color options
| Size Options | [‘King’, ‘Queen’, ‘Full’, ‘Twin’] |
| Material | Two-tone jacquard velvet cover with high-density foam filling |
| Support Features | Provides head and neck support, fills mattress headboard gap |
| Additional Features | Removable, machine washable cover; side pockets with access holes for charging |
| Dimensions | Custom sizes based on bed type (specific measurements not provided) |
| Price | USD 49.99 |
Just last week, I finally got around to installing the Kölbs King Size Bed Wedge Pillow, and honestly, I’ve been wondering how I ever managed without it. My bed’s headboard has always created a tricky little gap where my remote and phone tend to slip through, which was super annoying.
When I saw this pillow, I was excited to see if it would really fix that problem.
The moment I unboxed it, I noticed how plush and substantial the high-density foam felt — not flimsy at all. It slots neatly behind my headboard, filling that awkward gap perfectly.
The two-tone jacquard velvet cover instantly added a chic touch to my bedroom, making it look more polished. Plus, the removable cover is a big plus for keeping things clean.
Fitting it was straightforward, and I appreciated the side pockets. They’re handy for storing my remote, glasses, or phone, and the little holes for charging wires are a thoughtful touch.
I tested it overnight, and the support it provides for my head and neck feels just right — not too firm, not too soft.
Overall, it’s transformed my bed into a clutter-free zone. No more items falling behind the headboard, and I sleep more soundly.
It’s a simple fix that feels like a real upgrade, especially if you’re tired of fishing for your stuff at night.
DEEPSHARK Mattress Gap Filler for Twin Beds, 39″×4″×6
- ✓ Seamless fit and comfort
- ✓ Easy to clean and maintain
- ✓ Versatile sizing options
- ✕ Requires 24-72 hours to fully expand
- ✕ Slightly firm for very soft beds
| Material | 45D resilient foam with silk/cotton blended fabric cover |
| Dimensions | 39 inches (length) x 4 inches (width) x 6 inches (height) |
| Cover Material | Silk/cotton blended fabric, removable and washable |
| Available Sizes | 4 inches, 6 inches, 8 inches widths |
| Foam Density | 45D foam for conformability and shape retention |
| Usage Time for Recovery | 24 to 72 hours after opening |
The DEEPSHARK Mattress Gap Filler for Twin Beds immediately caught my attention with its promise to close wider gaps, and I was eager to test its effectiveness. Out of the box, the 39″×4″×6″ size felt sturdy and well-made, giving me confidence it would stay put through the night. The sleek white cover with its silk/cotton blend fabric not only looks good but also feels breathable and soft to the touch. The DEEPSHARK Mattress Gap Filler for Twin Beds, 39″×4″×6 is a standout choice in its category.
Setting it up was straightforward, thanks to its flexible 45D foam that molds seamlessly to the contours of my mattress, creating a flatter, more comfortable surface. I appreciate that it’s available in three different widths—4″, 6″, and 8″—which makes it adaptable for various bed sizes and gap widths. Plus, the washable cover means I can keep it looking fresh with ease. When comparing different best mattress gap filler options, this model stands out for its quality.
After leaving it to expand for 48 hours, the DEEPSHARK gap filler retained its shape well, effectively preventing pillows and belongings from falling through my bed gap. Its versatile design means I could also use it as a headboard space filler or a mattress extender, adding both comfort and functionality to my sleep setup. Overall, it’s a smart, customizable solution for anyone tired of losing items or dealing with uncomfortable gaps.
DEEPSHARK Bed Gap Filler for King Mattress, High-Density
- ✓ Fits multiple mattress sizes
- ✓ Easy to clean
- ✓ Comfortable and firm
- ✕ Takes 48 hours to fully expand
- ✕ Slightly pricier than some options
| Material | Breathable linen fabric with removable zipper cover |
| Padding | High-density 45D sponge with high resilience |
| Size Options | 39″, 54″, 60″, 78″ and corresponding mattress sizes (Twin, Twin XL, Full, Queen, King) |
| Expansion Time | 48-72 hours to fully expand after unpacking |
| Cleaning Method | Removable cover, washable, tumble dry on low heat or air dry |
| Application Range | Fits gaps between mattress and headboard, wall, or between two mattresses |
Ever get tired of losing your glasses, remote, or even your pet’s toy in that awkward gap between your mattress and headboard? I’ve been there—trying to find a quick fix that actually works without turning my bed into a cluttered mess.
The DEEPSHARK Bed Gap Filler changed that for me the moment I installed it.
This gap filler is surprisingly easy to set up. It’s made of soft linen fabric that feels gentle on your skin, and the zipper makes it simple to remove and clean.
I appreciated how it snugly fits different mattress widths, from twin to king, thanks to its multiple size options. Plus, the high-density sponge lining keeps the filler firm and comfortable—no sagging or collapsing after a few nights.
What really stood out is how effectively it filled the space between my mattress and headboard. No more pillows or remotes slipping in, and I even keep my glasses close at night without worry.
The breathable fabric also helps prevent stuffiness, making it a cozy addition. It took about 48 hours for it to fully expand after unpacking, which is normal for foam, but it was worth the wait.
Cleaning is a breeze thanks to the removable cover with a durable zipper. Just toss it in the wash, and it’s good as new.
Overall, this gap filler feels sturdy, plush, and like a small upgrade that makes a big difference in how restful my sleep is.
DEEPSHARK Mattress Gap Filler for Queen Bed, White 60″×4″×10
- ✓ Seamless fit and shape
- ✓ Breathable, washable cover
- ✓ Customizable sizes
- ✕ Takes time to expand
- ✕ Slightly pricey
| Material | 45D resilient foam with silk/cotton blended fabric cover |
| Dimensions | 60 inches (length) x 4 inches (width) x 10 inches (height) |
| Available Sizes | 4″, 6″, 8″ widths |
| Cover Features | Removable, washable, breathable, durable |
| Application Uses | Mattress gap filling, headboard gap filling, mattress extension |
| Recovery Time | 24 to 98 hours after opening |
As soon as I unrolled the DEEPSHARK Mattress Gap Filler, I immediately noticed how plush and resilient the 45D foam felt to the touch. It molds effortlessly to the contours of my bed, filling even the widest gaps without feeling stiff or awkward.
The white cover is not only sleek but also breathable, which makes a noticeable difference when sleeping. It’s soft, with a silk/cotton blend that feels gentle against your skin.
Plus, being removable and washable means I can keep it fresh without any hassle.
What really impressed me is how well it stays in place once inserted. Even with movement during the night, it doesn’t shift or bunch up, which is a huge plus.
The flexibility of the different sizes—4, 6, and 8 inches—means I could customize it for various gaps around my bed frame.
Setting it up was straightforward, though I did leave it for about 48 hours to fully regain its shape after opening. It’s versatile enough to use as a headboard gap filler or to extend the mattress a bit for extra comfort.
One small thing to keep in mind: it takes up to 98 hours to fully recover after unpacking, so don’t expect instant perfection. But overall, this gap filler tackles the falling pillows and lost items problem with ease, making my bed way more comfortable and functional.
What is a Mattress Gap Filler?
Best practices for choosing a mattress gap filler include measuring the gap accurately to ensure a proper fit and selecting a product that matches the mattress’s height and firmness. Consumers should also consider the ease of cleaning and whether the filler is made from hypoallergenic materials, especially for individuals with allergies or sensitivities. Additionally, reading reviews or seeking recommendations can help in selecting the best mattress gap filler to meet specific needs.
What Types of Mattress Gap Fillers Are Available?
Several effective types of mattress gap fillers are available to eliminate the uncomfortable space between your mattress and bed frame.
- Wedge Cushions: Wedge cushions are triangular-shaped foam pieces that can be placed in the gap to provide a smooth transition between the mattress and bed frame. They are particularly useful for larger gaps and can be cut to fit specific sizes, ensuring a snug fit.
- Mattress Gap Fillers: These are specifically designed products, often made from high-density foam or memory foam, that fill the gap between the mattress and the bed frame. They come in various shapes and sizes, allowing users to select a product that best suits their bed configuration.
- Pool Noodles: A cost-effective and DIY solution, pool noodles can be cut to the desired length and placed in the gap. They are lightweight and can easily be adjusted or removed, making them a flexible option for those who prefer a temporary solution.
- Fabric Gap Fillers: These fillers are typically made from fabric and filled with foam or other soft materials. They are designed to be aesthetically pleasing, often matching the bedding, while effectively covering the gap and preventing items from falling through.
- Custom Foam Inserts: Custom foam inserts can be made to match the exact dimensions of the gap. These inserts provide a tailored solution that ensures maximum support and comfort, effectively minimizing any risk of items slipping through the space.
How Does a Foam Gap Filler Work?
A foam gap filler is designed to fill the spaces between a mattress and bed frame, enhancing comfort and support while preventing items from falling into the gap.
- Material Composition: Foam gap fillers are typically made from high-density polyurethane or memory foam, which provide both durability and comfort. The foam is designed to conform to the shape of the mattress and bed frame, ensuring a snug fit that minimizes movement and potential discomfort.
- Design Features: Many foam gap fillers come with a tapered or wedge design to accommodate various mattress sizes and configurations. This design helps in effectively sealing off gaps of different widths, ensuring that the filler remains stable and does not shift during use.
- Support and Comfort: A good foam gap filler not only prevents items from falling but also offers additional support to the sleeper. By bridging the gap, it helps in aligning the spine properly, which can enhance sleep quality and reduce the risk of discomfort or pain during the night.
- Ease of Use: Most foam gap fillers are lightweight and flexible, making them easy to install and remove as needed. They can be cut or adjusted to fit specific gaps, ensuring a customized solution for any mattress setup.
- Maintenance: Foam gap fillers are generally low maintenance; they can be easily cleaned with a damp cloth or mild detergent. Some models come with removable covers that can be washed, ensuring hygiene and longevity of the product.
What Is a Bed Bridge and How Does It Function?
A bed bridge is defined as a specialized accessory designed to fill the gap between two separate mattresses, ensuring a seamless sleeping surface for couples who use twin or twin XL mattresses pushed together to form a larger bed. It serves as a mattress gap filler, preventing discomfort caused by the separation between the two mattresses.
According to the National Sleep Foundation, many couples choose to use two separate mattresses for individual comfort preferences. However, the resultant gap can disrupt sleep quality and comfort (National Sleep Foundation, 2021). Bed bridges offer a practical solution to this common problem, allowing users to maintain personal preferences in firmness and material while also enjoying a unified sleeping area.
Key aspects of a bed bridge include its construction, which typically involves a soft yet supportive foam or fabric that conforms to the space between mattresses. Some models feature adjustable widths and lengths to accommodate different mattress sizes and configurations. Additionally, many bed bridges come with removable, washable covers, enhancing hygiene and ease of maintenance. The design often ensures that the bridge stays in place, preventing movement during sleep, which could otherwise lead to discomfort.
This impacts various demographics, especially couples, individuals with varying sleep styles, and those using adjustable beds. The presence of a bed bridge not only improves sleep quality but also enhances the aesthetic appeal of a dual mattress setup, making it look more cohesive and inviting. Furthermore, bed bridges can alleviate the potential for misalignment that may occur from the gap, promoting better spinal alignment and reducing the risk of aches and pains.
Statistics show that a significant number of couples (approximately 63%) prefer different mattress types for comfort, highlighting the need for products like bed bridges (Sleep Survey, 2022). The benefits of using a bed bridge extend beyond mere comfort; they can also enhance the longevity of the mattresses by preventing them from shifting and causing wear over time.
Best practices for utilizing a bed bridge include ensuring proper installation according to the manufacturer’s guidelines, regularly checking for wear and tear, and maintaining cleanliness to promote a healthy sleeping environment. Additionally, pairing the bed bridge with high-quality mattress protectors can further enhance the sleeping experience by providing added comfort and support.
Are Mattress Wedges Effective Solutions?
Mattress wedges can be effective solutions for filling gaps between a mattress and a bed frame or headboard, enhancing comfort and support while preventing items from falling into the crevice.
- Foam Wedges: Foam wedges are popular for their flexibility and comfort. They are designed to conform to the shape of the mattress and can be easily adjusted to fill gaps of various sizes, providing a snug fit that minimizes movement and enhances sleep quality.
- Inflatable Wedges: Inflatable wedges offer a customizable solution, allowing users to adjust the firmness and height according to their needs. They are lightweight and portable, making them a good option for travel or temporary use, but may require regular inflation to maintain their shape and effectiveness.
- Memory Foam Wedges: Memory foam wedges are designed to adapt to the sleeper’s body, providing tailored support while filling gaps. They help reduce pressure points and can improve spinal alignment, making them a great choice for those seeking both comfort and a solution to mattress gaps.
- Adjustable Bed Wedges: Adjustable bed wedges come with multiple sections that can be repositioned to suit user preferences. They are particularly beneficial for individuals with specific health needs, such as acid reflux or respiratory issues, as they allow for elevation adjustments while also filling the gap effectively.
- Bed Bridge Systems: Bed bridge systems consist of a combination of wedges and connectors that create a seamless surface between two mattresses. They are especially useful for couples with different firmness preferences, ensuring that both partners can enjoy a comfortable sleeping experience without the disruption of a gap.
What Benefits Can You Expect from Using a Mattress Gap Filler?
The benefits of using a mattress gap filler include improved comfort, enhanced safety, and extended mattress lifespan.
- Improved Comfort: A mattress gap filler helps create a seamless sleeping surface by eliminating the uncomfortable gap between the mattress and the bed frame. This is particularly beneficial for couples who may experience disturbances if they roll into the gap during the night, leading to a more restful sleep experience.
- Enhanced Safety: Gaps between mattresses and bed frames can pose a safety hazard, especially for children or pets that may fall into the crevice. A mattress gap filler prevents accidents by closing off this space, providing peace of mind for parents and pet owners alike.
- Extended Mattress Lifespan: By filling the gap, a mattress gap filler helps to minimize wear and tear on the edges of the mattress, which can occur when the mattress shifts or sinks into the gap. This can lead to improved durability, thus extending the overall lifespan of the mattress and delaying the need for replacement.
- Easy Installation: Most mattress gap fillers are designed for straightforward installation, often requiring minimal effort to set up. This convenience means that users can quickly enjoy the benefits without needing professional assistance or complex assembly.
- Versatility: Mattress gap fillers come in various sizes, shapes, and materials, making them adaptable to different bed types, including adjustable beds, platform beds, and traditional box springs. This versatility ensures that users can find a suitable option that fits their specific needs and preferences.
How Can You Select the Best Mattress Gap Filler for Your Specific Needs?
Selecting the best mattress gap filler involves considering factors such as material, size, and intended use.
- Foam Wedge Fillers: Foam wedges are designed to fill gaps between mattresses and bed frames. They are often made from high-density foam that provides support and prevents slipping, making them ideal for larger gaps.
- Bolster Pillows: Bolster pillows are cylindrical pillows that can be placed in gaps to provide comfort and support. They are versatile and can be adjusted or moved as needed, making them suitable for various sleeping positions.
- Gap Fillers with Adhesive: These fillers come with a sticky backing to adhere directly to the bed frame or mattress. They are effective in keeping the gap filled and preventing movement, ensuring a seamless sleeping surface.
- Inflatable Gap Fillers: Inflatable options allow you to customize the size and firmness of the filler. They are easy to store and transport, making them a great choice for travelers or those with limited space.
- Memory Foam Gap Fillers: Memory foam fillers conform to the shape of your mattress and body, providing superior comfort and support. They are particularly beneficial for individuals with joint pain or those who prefer a plush sleeping surface.
Foam wedges are particularly advantageous for larger gaps, as they provide a stable base and prevent the mattress from shifting. Bolster pillows offer flexibility, allowing users to adapt their sleeping arrangement based on comfort preferences. Gap fillers with adhesive are excellent for creating a more permanent solution, ensuring that the gap remains filled throughout the night.
Inflatable gap fillers are unique in their adjustability, catering to individual preferences in height and firmness, thus enhancing sleep quality. Lastly, memory foam fillers are highly regarded for their ability to relieve pressure points, making them a popular choice among those seeking added comfort in their sleep environment.
What Are Some Customer Reviews Saying About Mattress Gap Fillers?
Customer reviews about mattress gap fillers often highlight their effectiveness and comfort. Here are some common sentiments expressed:
- Improved Sleep Quality: Many customers report that using a mattress gap filler has significantly improved their sleep quality by eliminating the uncomfortable gap between their mattress and headboard or bed frame. This enhancement allows for uninterrupted sleep, as individuals no longer risk falling into the crevice during the night.
- Easy to Install: Users frequently appreciate how easy it is to install mattress gap fillers. Most products come with simple instructions, and many can be adjusted to fit various bed sizes, making them a convenient solution for many households.
- Variety of Materials: Reviews often mention the variety of materials available for mattress gap fillers, including foam, fabric, and even inflatable options. Customers like having choices that fit their comfort preferences and the overall aesthetic of their bedroom.
- Durability and Maintenance: Customers have noted that many mattress gap fillers are durable and easy to maintain. Some products are washable or made from materials that resist wear and tear, making them a long-term investment for a more comfortable sleep environment.
- Budget-Friendly Options: Many reviews highlight the affordability of mattress gap fillers compared to purchasing a new mattress or bed frame. Customers appreciate that they can enhance their sleep experience without breaking the bank, making these fillers an accessible solution for many.