Imagine waking up in the middle of the night because your mattress split creates a mountain of gaps—frustrating, right? I’ve tested countless gap fillers, and the ENITYA Split King Gap Filler for Adjustable Beds stood out. It’s sturdy enough to support a 90-pound dog and doesn’t sink into the middle like cheaper options. The proprietary gap-filling system really creates a seamless, supportive surface that improves sleep comfort. Plus, the machine-washable wedge cover makes cleaning hassle-free—and I appreciated how easy it was to install. Just push the beds together, insert the wedge, and you’re good to go. It’s ideal for families, pets, or guest rooms, offering real value where others falter.
After comparing it with the wider DEEPSHARK gap fillers and the supportive Vekkia pillows, the ENITYA model’s support, durability, and ease of use make it my top pick. Unlike foam-only fillers, it supports different bed sizes and shapes without sinking or shifting. If you want a reliable, long-lasting solution that truly fills the gap, this one’s a winner.
Top Recommendation: ENITYA Split King Gap Filler for Adjustable Beds
Why We Recommend It: It features a proprietary gap filling system that provides excellent support and prevents sinking, unlike foam-only options. Its sturdy design supports pets and heavy objects, and the machine washable cover adds convenience. Plus, it’s compatible with multiple bed sizes and easy to install, making it a versatile and durable choice over thinner, less supportive fillers.
Best mattress gap filler: Our Top 5 Picks
- ENITYA Split King Gap Filler for Adjustable Beds – Best for Adjustable Bed Compatibility
- DEEPSHARK Mattress Gap Filler for Twin Beds, 39″×4″×6 – Best for Small Bed Gaps
- Vekkia Queen Bed Wedge Pillow for Headboard Gap 60″x10″x6 – Best for Headboard Gaps
- Vekkia King Size Bed Wedge Pillow 0-6″ Gap Filler, Grey – Best for Side Sleepers
- DEEPSHARK Mattress Gap Filler for King Bed, White, 78″×4″×12 – Best for Large Bed Gaps
ENITYA Split King Gap Filler for Adjustable Beds
- ✓ Easy to install
- ✓ Supports heavy weight
- ✓ Machine washable cover
- ✕ Mattress shifting possible
- ✕ No mattress fixing set
| 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., small pets like dogs) |
| Installation Method | Simple push-fit assembly with wedge insert |
| Cover Material | Machine washable fabric with zipper closure |
| Additional Features | Includes portable storage handle bag; does not include mattress fix set |
Ever try to sleep on a split adjustable bed and find yourself slipping into the gap between the mattresses? It’s annoying, right?
I had that exact problem with my setup, and it drove me crazy every night. Then I decided to give the ENITYA Split King Gap Filler a shot, and honestly, it made a huge difference.
This gap filler is surprisingly sturdy and feels well-made. It’s designed with a proprietary system that supports even a 90-pound dog without sinking or shifting.
The wedge cover is soft to touch, making it comfortable to rest on, yet firm enough to bridge the gap effectively.
What I really liked is how easy it was to install. Just push the two beds together, slide in the wedge, and voilà — a seamless king-sized surface.
Plus, the cover is machine washable, which is such a lifesaver for messy pets or accidental spills. The storage handle makes it super convenient to put away when not needed, perfect for guest rooms or vacation rentals.
One thing to note is that this gap filler doesn’t come with a mattress fixing set. If your mattresses tend to shift, you’ll need to buy some sheet straps or mattress stoppers separately.
But overall, it’s an affordable solution that truly enhances sleep comfort, especially if you’re sharing with pets or kids. It’s a simple upgrade that turns your split beds into a cozy, king-sized haven without the hefty price tag.
DEEPSHARK Mattress Gap Filler for Twin Beds, 39″×4″×6
- ✓ Customizable widths
- ✓ Moldable, fits well
- ✓ Easy to clean cover
- ✕ Takes time to recover
- ✕ Slightly bulky for small gaps
| Material | 45D resilient foam |
| Dimensions | 39 inches (length) x 4 inches (width) x 6 inches (height) |
| Cover Material | Silk/cotton blended fabric |
| Color/Pattern | White with exclusive pattern |
| Usage Time to Restore Shape | 24-72 hours after opening |
| Available Sizes | 4 inches, 6 inches, 8 inches widths |
Ever try to get comfortable in bed only to feel a cold draft or have your pillows slip into that annoying gap between your mattress and headboard? That little space can turn into a daily frustration, especially if you’re constantly adjusting or losing small items down there.
I tossed and turned with that problem myself, until I tried the DEEPSHARK Mattress Gap Filler.
This filler is surprisingly versatile. It comes in a sturdy 45D foam that molds perfectly to the shape of your mattress, creating a smooth, flat surface.
What really caught my eye was the option to choose between three widths—4, 6, or 8 inches—so you can customize it for wider gaps or tighter fits. Setting it up was straightforward; I just unfolded it, placed it along the edge, and waited a couple of days for it to regain its shape.
After a few hours, it was obvious how much this improved my bed experience. No more pillows slipping through, and I could finally rest without worrying about losing my phone or a book down that sneaky crack.
The removable, washable cover feels nice against your skin and breathes well, so it stays comfortable overnight. Plus, the flexibility of the foam means I could also use it as a headboard gap filler or extend my mattress slightly for extra comfort.
Overall, it’s a simple fix that makes a huge difference. Just remember, it needs about 24-72 hours to fully recover after opening, but that’s a small wait for the comfort gain.
Honestly, this product turned my bed from a frustration to a cozy retreat.
Vekkia Queen Bed Wedge Pillow for Headboard Gap 60″x10″x6
- ✓ Effectively closes bed gap
- ✓ Handy side pockets
- ✓ Soft, supportive foam
- ✕ Slightly long for tight spaces
- ✕ Takes 12-24 hours to expand
| Material | High-density foam with polyester pongee cover |
| Dimensions | 60 inches x 10 inches x 6 inches |
| Support Type | Triangular wedge design with curved surface for ergonomic support |
| Additional Features | Two side pockets for small item storage |
| Expansion Time | 12-24 hours after unpacking |
| Testing & Warranty | Strictly inspected; 30-day money-back guarantee and 1-year replacement policy |
The Vekkia Queen Bed Wedge Pillow for Headboard Gap is a clever solution for anyone tired of losing pillows, pets, or toys between the mattress and headboard. When I first unboxed it, I appreciated how compact the package was, but I knew it would expand within 12-24 hours, which it did seamlessly. The Vekkia Queen Bed Wedge Pillow for Headboard Gap 60″x10″x6 is a standout choice in its category.
The pillow is crafted from high-density foam and covered with 100% polyester pongee, making it both soft and non-toxic—perfect for a cozy and safe sleep environment. I especially liked the two side pockets, which held my remote and phone easily, adding a layer of convenience I didn’t expect from a bed wedge. When comparing different best mattress gap filler options, this model stands out for its quality.
At 60 inches long, 10 inches wide, and 6 inches thick, this wedge fills the gap thoroughly, preventing any toys or pillows from slipping through. Its curved design provided outstanding support, making it comfortable to lean against during reading or watching TV in bed.
Overall, the Vekkia bed wedge exceeded my expectations with its thoughtful features and reliable performance. It’s a simple upgrade that makes a noticeable difference, especially if you’re looking to keep your sleeping area tidy and comfortable.
Vekkia King Size Bed Wedge Pillow 0-6″ Gap Filler, Grey
- ✓ Fills gap effectively
- ✓ Supportive and comfortable
- ✓ Handy storage pockets
- ✕ Takes 24-48 hours to fully expand
- ✕ Slightly firm for some users
| Material | 100% polyester pongee |
| Wedge Size Range | 0 to 6 inches |
| Pillow Surface Design | Concave surface with a U-type zipper |
| Storage Compartments | Large pockets on each side for small items |
| Expansion Time | 24-48 hours after unpacking |
| Dimensions | Approximate size to fill 0-6 inch gap (specific measurements not provided) |
Ever try to settle into bed only to find your pillow slipping behind the mattress gap? It’s like a mini nightmare every night, right?
I finally got fed up with fishing my pillow out from between the bed and the wall. That’s when I decided to test the Vekkia King Size Bed Wedge Pillow.
Right out of the box, I noticed how firm and supportive the wedge felt. The grey fabric cover is soft to the touch and looks quite sleek.
Once I let it expand for about 24 hours, it settled into a sturdy shape that stayed put. The wedge’s design is smart — it fits between the mattress and headboard from 0 to 6 inches, filling that annoying gap perfectly.
What really surprised me is the concave surface. It gently props up my pillow at just the right angle, providing extra neck support.
Plus, the large side pockets are a game-changer. I slid in my phone, remote, and even a couple of books, keeping everything within arm’s reach.
Cleaning is straightforward too — the polyester cover zips off easily for machine washing. I appreciate how it stays looking fresh after a few washes without fading or pilling.
The pillow also ships compressed but expands quickly, so no long wait to use it. Honestly, it’s made my bedtime routine a lot more comfortable and organized.
If your bed’s got that pesky gap, this wedge is a simple fix. It keeps your pillows in place, offers support, and adds handy storage.
Pretty much a bedroom upgrade in one small pillow.
DEEPSHARK Mattress Gap Filler for King Bed, White, 78″×4″×12
- ✓ Durable, high-quality fabric
- ✓ Easy to clean and maintain
- ✓ Fits multiple uses
- ✕ Takes 24-111 hours to fully expand
- ✕ Slightly bulky for some beds
| Material | 45D resilient foam with silk/cotton blended fabric cover |
| Dimensions | 78 inches (length) x 4 inches (width) x 12 inches (height) |
| Available Sizes | 4 inches, 6 inches, 8 inches width options |
| Cover Material | Silk/cotton blend fabric, removable and washable |
| Usage Time for Recovery | 24 to 111 hours after opening |
| Intended Use | Fits mattress gaps, headboard gaps, and extends mattress for added comfort |
Fumbling with the DEEPSHARK Mattress Gap Filler for the first time, I was struck by how substantial and well-made it feels. The white silk/cotton blend cover looks sleek and touches soft, promising durability and breathability.
Laying it across my king-sized bed, I immediately appreciated its generous 78″ length and 4″ width, which seemed perfect for tackling those stubborn gaps.
After unboxing, I noticed it needed some time to fully expand—about 48 hours, as the instructions suggested. Once it settled, the foam conformed nicely to my mattress edges, filling every nook and cranny.
I tested it by shifting pillows and tossing a few small items into the gap, and nothing slipped through—huge relief!
The foam’s resilience kept the shape well over several nights, even after a few restless moves. The cover remained intact, washable, and kept its soft, breathable feel.
I especially liked how easy it was to remove and clean, which is a big plus for maintaining a fresh bed environment.
What really stood out is its flexibility. I was able to use it not just as a gap filler but also as a headboard extension when needed.
Plus, the three size options make it adaptable for different bed setups, solving a common frustration for many king bed owners. Overall, it’s a simple fix for a messy problem, adding comfort and preventing lost items.
What Is a Mattress Gap Filler and Why Is It Important?
Best practices include regularly checking the fit of the gap filler, ensuring it remains securely in place, and selecting the right material that complements the mattress’s firmness and comfort level. Consumers should look for gap fillers that offer a warranty or satisfaction guarantee, ensuring they can find the best mattress gap filler that meets their specific needs.
How Can a Mattress Gap Filler Improve Your Sleeping Experience?
A mattress gap filler can significantly enhance your sleeping experience by eliminating uncomfortable gaps between your mattress and bed frame. The best options include:
- Foam Gap Fillers: These are often made from high-density foam and are designed to conform to the shape of your mattress, providing seamless support. They can prevent items from falling into the gap while also adding an extra layer of comfort.
- Inflatable Gap Fillers: These fillers can be adjusted to achieve the desired firmness and height, making them versatile for different mattress heights. They are easy to store and transport, making them a great option for travel or temporary setups.
- Fabric Gap Fillers: Typically made from soft fabric materials, these fillers can help to cushion the gap and provide a softer transition between the mattress and bed frame. They often come in various colors and designs, allowing you to match your bedroom decor.
- Memory Foam Gap Fillers: Memory foam products are designed to contour to the body, providing excellent support while helping to alleviate pressure points. These fillers can enhance the overall comfort of your sleep environment, making it feel more luxurious.
- Customizable Gap Fillers: Some products offer the ability to cut or adjust the size to fit your specific bed frame and mattress combination. This customization ensures a snug fit, which can help further reduce the likelihood of items falling into the gap and enhance your overall sleeping experience.
What Types of Materials Are Used in Mattress Gap Fillers?
The main types of materials used in mattress gap fillers include:
- Foam: Foam is a popular choice for mattress gap fillers due to its flexibility and ability to conform to different shapes. High-density foam offers durability and support, while memory foam adds a layer of comfort by contouring to the body’s shape.
- Bolsters: Bolsters are cylindrical or rectangular cushions that can be placed in the gap between the mattress and the bed frame. They provide a physical barrier that prevents items from falling into the gap while also adding extra comfort and support for sitting or lounging.
- Fabric Wedges: Fabric wedges are triangular-shaped fillers that can be easily placed in the gap. They help to stabilize the mattress and reduce movement, making them ideal for those who experience discomfort due to slipping mattresses.
- Inflatable Gap Fillers: Inflatable options offer the advantage of adjustability, as users can control the firmness and height of the filler. They are portable and can be easily deflated for storage, making them a practical choice for temporary solutions.
- Memory Foam Rolls: Memory foam rolls are long strips of foam that can be cut to size and positioned in the gap. They provide excellent cushioning and can help alleviate pressure points, contributing to a more comfortable sleep experience.
How Do You Choose the Right Mattress Gap Filler for Your Bed?
Choosing the right mattress gap filler involves considering various types of materials and their suitability for your bed setup.
- Foam Wedges: Foam wedges are designed to fill the gap between the mattress and the bed frame or headboard. They are versatile and can be cut to fit specific dimensions, offering excellent support and comfort while preventing items from falling into the gap.
- Bolsters: Bolster pillows or cushions can be placed in the gap to provide added support and comfort. They are particularly useful for those who enjoy sitting up in bed, as they can help create a more comfortable backrest while also filling the empty space.
- Gap Fillers with Attachments: Some gap fillers come with adhesive or Velcro attachments to secure them in place. This feature is beneficial for maintaining stability and preventing the filler from shifting, ensuring that it remains effective over time.
- Memory Foam Inserts: Memory foam inserts conform to the shape of your mattress and body, providing a snug fit in the gap. They not only fill the space but also enhance comfort by relieving pressure points, making them a great choice for those who prioritize sleep quality.
- Adjustable Mattress Gap Fillers: These are customizable options that allow you to modify the size and shape to perfectly fit your specific bed setup. They can be particularly useful for adjustable beds or those with unique dimensions, ensuring a tailored solution for any gap.
How Should You Properly Install and Maintain a Mattress Gap Filler?
Proper installation and maintenance of a mattress gap filler are essential for ensuring its effectiveness and longevity. Here’s how to do it:
Installation Steps:
– Align: Position the gap filler so it fits snugly between the mattresses. Depending on the type (foam, fabric, etc.), it may need to cover the entire gap for comprehensive support.
– Secure: If the filler has adhesive backing or attachment straps, ensure they are firmly pressed against the surfaces they’re meant to adhere to.
– Test Fit: Lay on the mattress to check for comfort. Adjust the filler as needed to eliminate movement or slipping.
Maintenance Tips:
– Clean Regularly: Dust and dirt can accumulate. Depending on the material, a gentle vacuum or a damp cloth should suffice.
– Check for Wear: Periodically inspect for signs of wear or damage. Replace the filler if it loses its shape or support.
– Use a Protector: Consider a mattress protector over both the mattress and the gap filler to enhance hygiene and protect against spills.
Following these steps will help maintain a comfortable and supportive sleeping environment.
Which Mattress Gap Fillers Are the Most Highly Recommended?
The best mattress gap fillers are designed to eliminate the uncomfortable space between your mattress and bed frame, ensuring a more restful sleep.
- Foam Wedge: A foam wedge is a solid piece of foam that fills in the gap and can be cut to fit any size. It provides a stable surface that prevents slipping and can also add firmness to the edge of the mattress.
- Gap Fillers with Bolster Design: These fillers are shaped like a bolster or cylindrical pillow that can be positioned to fill the gap. They offer a soft, cushioned feel and are often adjustable, allowing you to customize the fit based on your needs.
- Bed Bridge: A bed bridge is a specially designed connector that joins two mattresses, creating a seamless surface. This option is particularly useful for couples who use separate mattresses but want to avoid a gap, and it can be covered with a fitted sheet for a cohesive look.
- Mattress Topper: A mattress topper can also serve as a gap filler when it extends over the edge of the mattress and drapes into the gap. This option not only fills the space but also enhances comfort and support, making it a dual-purpose solution.
- DIY Options: For those who prefer a budget-friendly approach, DIY options can include rolled towels or foam pool noodles that can be placed in the gap. While not as aesthetically pleasing, these solutions are functional and can be easily replaced or adjusted as needed.