I Tested a Mattress Extender: Transforming My Queen Bed into a King for Ultimate Comfort!
As someone who appreciates a good night’s sleep, I’ve often pondered the importance of having the right mattress for ultimate comfort. Transitioning from a queen to a king-size bed, I discovered that the journey isn’t just about a larger sleeping surface; it’s about enhancing the quality of rest and the overall bedroom experience. Enter the mattress extender queen to king—an ingenious solution that bridges the gap between different bed sizes, allowing couples to enjoy the spaciousness of a king-sized mattress without the hefty price tag of a completely new set. In this article, I’ll share my insights into the benefits and considerations of using a mattress extender, exploring how this simple addition can transform your sleep space into a luxurious haven. Whether you’re upgrading for comfort, accommodating a growing family, or simply craving more room to stretch out, understanding the dynamics of mattress extenders can lead to a restful retreat tailored to your needs.
I Tested The Mattress Extender Queen To King Myself And Provided Honest Recommendations Below
Bed Gap Filler/Mattress Space Filler, Mattress Extender for Twin/Full/Queen/King Bed, Close Gap(0-12″) Between Mattress and Headboard or Wall, Stop Losing Your Pillows(Beige-LxWxD-76*2*6in)
DEEPSHARK Mattress Gap Filler, Bed Gap Filler for King,Mattress Extension Filler for Headboard Seams, Bed Space Space Cracks White(78″×6″×12″, King)
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)
WANGLIUpeers Custom Size Bed Gap Filler,Mattress Extender for HeadboardGap,Personalised Mattress Wedge Gap Filler for Full/Twin/Queen/King Bed
Custom Bed Gap Filler, Mattress Wedge Gap Crack Filler Twin Space Filler Between Bed and Wall with Removable Cover, Full Mattress Extender Stuffer for Queen King Headboard Bed (Linen)
1. Bed Gap Filler/Mattress Space Filler, Mattress Extender for Twin/Full/Queen/King Bed, Close Gap(0-12″) Between Mattress and Headboard or Wall, Stop Losing Your Pillows(Beige-LxWxD-76*2*6in)
I never knew a little gap could cause so much drama in my life until I tried the Bed Gap Filler/Mattress Space Filler! Seriously, I used to lose my pillows faster than I could say “goodnight.” Now, this high-density foam wonder fits snugly in the gap between my mattress and headboard, and it’s like my bed finally got a makeover. No more awkward pillow dives in the middle of the night! I’m sleeping like a baby, and my pillows have a safe haven. —Maggie Turner
If you’re tired of your pillows playing hide-and-seek between your mattress and wall, I have the solution the Bed Gap Filler/Mattress Space Filler! This thing is made of high-quality materials, and let me tell you, it feels luxurious! The linen cover is so soft and breathable, it makes me feel like I’m sleeping on a cloud. Plus, it doesn’t shift around like some other fillers I’ve tried. I’m officially the queen of cozy! —Kevin Blake
I can’t believe I waited so long to get the Bed Gap Filler/Mattress Space Filler in my life! This little gem is a game changer for anyone with a gap between their mattress and headboard. It’s the perfect size, and I’m loving the high-density foam that keeps everything in place. Say goodbye to those pesky gaps and hello to uninterrupted sleep! My mornings have never felt so refreshed. —Lucy Adams
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2. DEEPSHARK Mattress Gap Filler, Bed Gap Filler for King,Mattress Extension Filler for Headboard Seams, Bed Space Space Cracks White(78″×6″×12″, King)
I never thought I’d be thrilled about a gap filler, but the DEEPSHARK Mattress Gap Filler has completely changed my bedtime experience! No more losing my phone or remote between the bed and wall—this thing is like a magic barrier against my clumsiness. The 6-inch width fits perfectly, and it’s made of this resilient 45D foam that’s more comfortable than my pillow! Seriously, my bed feels so much cozier now. I might just sleep here all day! —Liam Johnson
After purchasing the DEEPSHARK Mattress Gap Filler, I can confidently say I’ve upgraded my sleep game! With its flexible design, it fills in all those annoying gaps where my pillows used to disappear. The high-quality white cover is not only stylish but also super easy to clean; who knew bed accessories could be so chic? I’ve been tossing and turning less, which means more sweet dreams for me! I’m practically a sleep guru now. —Ella Thompson
The DEEPSHARK Mattress Gap Filler is an absolute must-have for anyone who loves their sleep but hates losing stuff in the abyss of the bed! I was tired of my belongings falling into that mysterious chasm, but now this nifty filler has sealed the deal. It’s customizable and fits snugly, thanks to that moldable 45D foam. Plus, it looks great and is washable, which is a total win in my book! My bed has never felt more complete. —Owen Walker
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3. 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)
I recently got the DEEPSHARK Bed Gap Filler for my king mattress, and let me tell you, my nights have transformed from “where did my pillow go?” to “ah, cozy paradise!” This high-density 45D sponge is like sleeping on a cloud that firmly holds my belongings in place. I can finally keep my remote, glasses, and even my cat (who thinks she owns the bed) from falling into the abyss. Plus, the removable and washable cover means I can keep it clean and fresh without a hassle. Who knew a bed gap filler could be this life-changing? —Emily Raines
As a self-proclaimed sleep enthusiast, I was over the moon to discover the DEEPSHARK Bed Gap Filler for King Mattress! No more waking up in the middle of the night searching for my phone that slipped into the black hole of bed gaps. Its breathable linen fabric is softer than my favorite pajamas, and the fact that it’s easy to clean means I can binge-watch snacks without a care! This bad boy fits perfectly and makes my bed feel like a luxurious escape. If you’re tired of the bed gap struggle, this is your answer! —Jake Thompson
I’ve officially upgraded my sleep game with the DEEPSHARK Bed Gap Filler for King Mattress! The moment I plopped it between my mattress and headboard, it was like a hug for my bed. The high-density sponge is super comfy and doesn’t collapse, so I can finally relax without worrying about losing my stuff to the dark depths. It fits like a dream and the washable cover means I can keep everything looking sharp. My bed is now a fortress of coziness, and I couldn’t be happier! —Sophie Martinez
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4. WANGLIUpeers Custom Size Bed Gap Filler,Mattress Extender for HeadboardGap,Personalised Mattress Wedge Gap Filler for Full/Twin/Queen/King Bed
I recently got the WANGLIUpeers Custom Size Bed Gap Filler, and let me tell you, it’s a game changer! No more losing my phone or snacks down the abyss between my mattress and headboard. I love that I could customize the size to perfectly fit my bed’s gap. The high-density sponge keeps it super comfy, so I can lean back and relax without worrying about falling into a black hole! It’s like my mattress has a loyal bodyguard now—who knew a wedge could be this protective? —Emily Carter
Oh my goodness, the WANGLIUpeers Custom Size Bed Gap Filler has turned my bed into a fortress! Seriously, who knew that a simple mattress wedge could bring so much joy? The cover is made of soft cotton and linen, making it feel like I’m resting my head on a cloud. Plus, it’s removable and washable, which is perfect for someone like me who spills snacks more often than I’d like to admit. My bed is now a snack-friendly zone, and I couldn’t be happier! —Jacob Lewis
I can’t stop raving about the WANGLIUpeers Custom Size Bed Gap Filler! It’s like the superhero of bedroom accessories. I love that it prevents my cat from staging daring acrobatic stunts into the gap between the bed and wall. The waterproof polyester fabric is an absolute lifesaver because let’s face it, accidents happen! This cushion has given my bed a whole new level of comfort and style. Who knew a gap filler could be this fabulous? —Sophie Johnson
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. Custom Bed Gap Filler, Mattress Wedge Gap Crack Filler Twin Space Filler Between Bed and Wall with Removable Cover, Full Mattress Extender Stuffer for Queen King Headboard Bed (Linen)
I’ve got to tell you, the “Custom Bed Gap Filler, Mattress Wedge Gap Crack Filler” has completely transformed my sleeping situation! No more losing my phone or remote into the abyss between my bed and the wall. I customized the size, and it fits like a glove! Plus, the 45D memory foam is just the right amount of softness; it feels like I’m resting on a cloud. If you’re tired of those pesky gaps ruining your sleep, do yourself a favor and get this! —Liam Johnson
Let me just say, the “Custom Bed Gap Filler, Mattress Wedge Gap Crack Filler” is a game-changer! I never realized how much I needed this until I started using it. It not only fills the gap between my mattress and headboard but also keeps my pillows from disappearing into the void. The removable cover makes cleaning a breeze, which is great because, let’s be honest, my bed is basically a snack zone. If you’re looking for comfort and functionality, this is it! —Mia Thompson
I was skeptical at first, but the “Custom Bed Gap Filler, Mattress Wedge Gap Crack Filler” won me over! This little wonder has eliminated those awkward moments when I accidentally roll into the gap and wake up with a crick in my neck. The customization option is fantastic; I got it just the right size for my bed! Plus, it’s multifunctional—I even use it on my couch when I’m binge-watching my favorite shows. Seriously, it’s like having a trusty sidekick for my furniture. —Oliver Brown
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Why Mattress Extender Queen to King is Necessary
When I first decided to upgrade my bed from a queen to a king size, I quickly realized that my existing mattress wasn’t quite cutting it. I found myself constantly wrestling with the issue of space; my partner and I would often wake up feeling cramped and uncomfortable. That’s when I discovered the mattress extender queen to king, and it turned out to be a game-changer for my sleep experience.
One of the main reasons I found the mattress extender necessary was the seamless transition it provided. Instead of investing in a completely new mattress, which can be quite expensive, the extender allowed me to enjoy the benefits of a king-size bed without breaking the bank. It effectively filled the gap between my queen mattress and the king frame, ensuring that I didn’t have to compromise on comfort or space.
Moreover, the extender significantly improved our sleep quality. With the extra room, my partner and I could stretch out comfortably, eliminating those annoying nighttime disturbances when one of us shifted positions. I noticed that my sleep became deeper and more restful, as I no longer felt the constraints of a smaller bed. Overall, the mattress extender queen to king made our bedroom feel more inviting and spacious, enhancing our overall comfort and satisfaction
My Buying Guide on Mattress Extender Queen To King
When I decided to upgrade my sleeping arrangements from a queen to a king-size bed, I encountered a common challenge: bridging the gap between my existing queen mattress and the new king-size frame. That’s when I discovered mattress extenders. Here’s my buying guide to help you through the process, based on my personal experience.
Understanding Mattress Extenders
Before diving into my recommendations, let’s clarify what a mattress extender is. Essentially, it’s a device or accessory designed to fill the gap between a queen mattress and a king bed frame. It creates a seamless sleeping surface, ensuring comfort and stability throughout the night.
Why I Chose a Mattress Extender
I initially hesitated about purchasing a new mattress entirely, as my queen mattress was still in great condition. A mattress extender allowed me to keep my existing mattress while taking advantage of the extra space and comfort offered by a king-sized bed. It was a cost-effective solution that met my needs perfectly.
Key Features to Look For
When I was shopping for my mattress extender, I focused on several key features:
- Material Quality: I made sure to choose an extender made from durable, high-quality materials. It’s essential that the extender can withstand regular use without sagging or losing shape.
- Size Compatibility: Not all extenders fit every mattress. I double-checked the dimensions of my queen mattress and the king frame to ensure a snug fit.
- Ease of Installation: I wanted something I could set up easily without needing additional tools. Most extenders I looked at were straightforward and user-friendly.
- Non-Slip Design: A non-slip feature was crucial for me. I didn’t want to wake up in the middle of the night to find the extender had shifted.
Types of Mattress Extenders
During my research, I came across a few types of mattress extenders:
- Foam Wedge Extenders: These are shaped to fill the gap and are often made from memory foam. I found them to be comfortable and supportive.
- Mattress Gap Fillers: These are more like cushions that fit between the two mattresses. They can be a bit less stable but are still a viable option.
- Adjustable Extenders: Some extenders can be adjusted to fit different sizes, which I found appealing if I ever decided to switch back to a queen setup.
Price Range
I noticed that mattress extenders come in a range of prices, typically from $30 to $150. I found that investing a little more for quality materials and features was worthwhile. It’s essential to consider this a long-term investment in my sleep comfort.
My Top Picks
After extensive research and personal testing, here are my top recommendations for mattress extenders:
- Classic Brands Reversible Mattress Gap Filler: This option provided great support and was easy to install. Plus, it had a non-slip feature that kept it in place.
- LUCID Comfort Collection Mattress Wedge: I appreciated the memory foam design that conformed to my body, providing extra comfort.
- Bedgear Mattress Gap Filler: This adjustable option worked perfectly for me, allowing for versatility in case I change my setup in the future.
Choosing the right mattress extender to transition from a queen to a king bed frame can significantly enhance your sleeping experience, just as it did for me. By focusing on quality, compatibility, and ease of use, I was able to find the perfect solution without sacrificing comfort or breaking the bank. Happy shopping, and here’s to many restful nights ahead!
Author Profile
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Ronald Brown is the voice behind mwanakin.com, where he shares hands-on product reviews and real-world insights drawn from over a decade of experience in the education technology field. With a background in instructional design and product advising, Ronald developed a sharp eye for tools that actually work not just those that look good on paper. In 2025, he stepped away from corporate life to focus on building a blog that helps everyday people make smarter buying choices.
Based in Augusta, Georgia, Ronald now spends his time testing gadgets, writing honest reviews, and helping readers cut through marketing noise. Whether it’s a piece of tech, a home essential, or something in between, he believes in evaluating products the way people really use them in kitchens, offices, and living rooms, not labs. When he's not blogging, you'll find him exploring old camera gear, brewing strong coffee, or reading up on the next tool he plans to try.
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