How to Fix a Sagging Mattress: 5 Tips and Tricks From Beddy's
Let’s be real — nobody dreams of waking up sore and stiff. But if your mattress has started to sag, that’s exactly what you’re signing up for every night. A sagging mattress doesn’t just mess with your comfort but can also throw your spine out of alignment, leading to back pain, restless nights, and those dreaded “Why am I still tired?” mornings.
The good news? You don’t have to toss your mattress just yet. There may be a simple fix, and we’re here to help. And if it’s beyond saving, we can help you upgrade, too! From quick tips to long-term solutions, here’s how to firm up a mattress — plus how Beddy’s mattresses make sagging a thing of the past.
What Causes a Mattress to Sag?
Even the best mattresses need a little tender loving care over time. But before you dive into how to fix a sagging mattress, it’s worth understanding why it happens in the first place.
Spoiler: It’s not always the mattress’s fault.
- Everyday Wear and Tear: Years of nightly pressure, especially around heavier spots like hips and shoulders, can cause mattress materials to compress. Over time, this leads to those dreaded dips and soft spots.
- Weak Foundation or Bed Frame: A mattress is only as strong as the foundation it rests on. Old box springs, slatted frames with wide gaps, or flimsy bed bases can cause your mattress to sag in all the wrong places.
- Foam Breakdown (Especially in Memory Foam): Memory foam mattresses are loved for their contouring comfort, but they’re more prone to soft spots over time. If your bed feels less supportive lately, we’ll show you how to make a mattress firmer later in this guide.
- Moisture Damage & Environmental Factors: Excess moisture can weaken internal materials, leading to sagging, especially in foam and pillow-top mattresses.
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Lack of Maintenance: Skipping basic care, such as rotating your mattress regularly, can speed up sagging. A few simple habits can go a long way toward keeping your bed supportive for longer.
5 Tips and Tricks to Fix Your Sagging Mattress
Now that we've uncovered what causes your mattress to sag, it's time to shift gears and focus on how to fix a sagging mattress.
In the next few steps, we'll share five practical tips and tricks that breathe new life into your mattress and help you extend its lifespan. Whether it’s a quick fix like rotating your mattress or a more involved update like reinforcing your bed frame, these strategies will put you back in control of your sleep.
#1 Rotate Your Mattress
Over time, sleeping in the same spot can lead to uneven wear and pesky dips where your body rests most. Rotating your mattress every three to six months redistributes the weight, helping to balance out the pressure points and delay further sagging. Even if your bed already shows signs of wear, a quick rotation might restore some of its former support and extend its lifespan. It’s a minor, no-cost fix that can make a big difference in your sleep quality.
#2 Inspect the Box Spring or Bed Frame and Replace If Necessary
Take a close look at your box spring or bed frame for signs of wear. Check for broken or uneven slats, visible cracks, or any warping that could compromise support. A sturdy foundation should hold your mattress evenly without dips or noticeable damage. If you spot any of these issues, it's a clear indicator that it's time to replace or reinforce your support system.
Use Plywood to Support a Broken Frame or Box Spring
If your frame or box spring is damaged, consider placing a piece of plywood between the mattress and the foundation. This quick fix is a practical way to fix a sagging mattress, helping to stabilize support and reduce dips until you’re ready for a more permanent upgrade.
#3 Consider a Mattress Topper
A mattress topper is an extra layer that improves comfort and support in your bed. It helps smooth out minor dips and evens the sleeping surface, making it an attractive quick fix for a sagging mattress. However, keep in mind that toppers are most effective when the underlying mattress isn’t too worn out.
Only Works If Your Mattress Isn’t Too Saggy
Remember that mattress toppers work best for minor sagging. A topper may not provide the necessary support if your mattress has deep indentations or significant structural issues. It's a great quick fix to extend your mattress’s life, but if the sagging is severe, you might need to consider other remedies.
What to Look For in a Mattress Topper
For the best results, choose a mattress topper between 2-5 inches thick and made from high-density foam or latex. These materials offer a good balance of softness and support, ensuring a smooth sleeping surface that enhances comfort without masking underlying problems.
How to Keep a Mattress Topper From Sliding
To make sure your mattress topper stays in place all night, look for options with a non-slip backing or use a fitted sheet designed for toppers. This simple step prevents shifting and keeps your sleeping surface consistent and comfortable.
#5 Buy a New, Long-Lasting Mattress
Sometimes, knowing how to fix a sagging mattress can't rescue one that's seen better days. When your bed is sagging so much that simple fixes leave you waking up with aches and restless nights, it might be time for a fresh start. Upgrading to a new, long-lasting mattress restores that much-needed support and begins your journey to better sleep and well-being.
At Beddy’s, our innovative designs and durable construction ensure you get the quality sleep you deserve night after night. What's more, our mattresses are engineered with replaceable components — so if a particular part starts to sag, you can swap it out without buying an entirely new mattress. This ensures your mattress lasts, offering you long-term support and peace of mind.
Beddy's ZipLuxe Mattress
Beddy's ZipLuxe Mattress is for those who crave customizable comfort. Its flippable organic latex layer lets you choose between a soft and firm sleep surface. Crafted with premium materials like individually wrapped coils and a luxurious quilt of HyPURGel and copper memory foam, this mattress delivers exceptional support and durability every night.
Beddy's ZipClean Mattress
Beddy’s ZipClean Mattress is designed for busy families. Its three-layer construction includes a base of individually wrapped coils, a comfort layer with CertiPUR copper memory foam, and a moisture-resistant, fully removable top cover that unzips for easy machine washing — making it the first-ever washable zipper mattress. The waterproof underside protects the inner layers from spills, ensuring your bed stays fresh and supportive night after night.
Beddy's ZipPure Mattress
Beddy’s ZipPure Mattress provides a sustainable, comfortable sleep solution for eco-conscious sleepers. Made from responsibly sourced organic materials and adhering to high industry standards, it features precision-engineered coils and an adaptable latex comfort layer, ensuring a personalized sleep experience and uncompromising quality.
Our 10-Year Warranty
When you invest in a Beddy’s mattress, you're not just buying a bed. You're buying peace of mind and the guarantee of 10-year worry-free Zs. At Beddy’s, your sleep is literally and figuratively on us.
We're all about giving you the best sleep, and our 10-year warranty proves that our stuff is built to last. You’ll enjoy the same comfy, excellent sleep you had on night one every single night.
#6 Replace Inner Elements of the Mattress
Sometimes, the secret to great sleep is simply swapping out the worn parts. You shouldn’t have to stress over how to make a memory foam mattress firmer when you can just replace the sagging foam or other components. This smart, affordable fix means you get to keep your mattress fresh and supportive, all while saving money and sleeping comfortably.
ZipLuxe Mattress and ZipPure Mattress: Beddy’s Forever Mattresses
Designed for modular comfort, Beddy’s ZipLuxe and ZipPure mattresses allow you to easily swap out the inner components, keeping your sleep experience fresh and customized.
- Replaceable Comfort Layer: These mattresses offer dual comfort with a flippable latex layer that allows you to choose between two firmness settings.
- Modular Support System: Individually wrapped coils deliver consistent support and can be updated as needed.
How Do I Know What Part to Replace?
Figuring out which component needs a refresh is simple. If you notice that certain areas of your mattress are visibly sagging or lacking support or if you consistently feel discomfort, that’s a clear sign the comfort layer or support system has worn out. The good news is that you don’t have to replace the entire mattress with Beddy's ZipLuxe and ZipPure mattresses. Just swap out the worn part and enjoy renewed comfort.
Mattress Longevity Best Practices
The longevity of your mattress depends on how much TLC you give it. Simple dos and don'ts can keep your mattress in top shape for years to come. Treat it right to maintain your good night's sleep! A little care goes a long way toward making sure your mattress stays supportive and comfortable.
No Jumping
Don't jump or bounce on your mattress to keep it in good shape for as long as possible. You could mess up the inside and make it sag prematurely.
Clean Bedding Regularly
Washing your bedding often stops dust, allergens, and moisture from building up. Not only that, but it also keeps your mattress in good shape, extends its life, and helps you feel better!
Flip Your Mattress Regularly
Flipping your mattress is a simple way to keep it comfy for longer. The materials inside can decompress and return to their original shape, preventing permanent dents and keeping your mattress comfy and supportive for years!
Use a Mattress Protector
A good mattress protector is an easy way to keep your mattress clean, protecting it from spills, stains, and daily wear and tear. This helps keep your mattress in good shape and makes it last longer.
Spot Clean as Needed
Spills and stains happen, but don't let them ruin your mattress! Clean them up immediately to stop your mattress from soaking up moisture, which can damage its internal components and cause sagging. A little spot cleaning here and there will keep your mattress comfy longer.
The Bottom Line
Knowing how to fix a sagging mattress goes beyond quick fixes and starts with the care you give it every day. Regular rotation, clean bedding, and a good mattress protector can extend the life of your current mattress, but when those measures aren’t enough, it may be time for an upgrade.
Beddy's mattresses are built to last and give you peace of mind. With replaceable parts and a 10-year warranty, you can sleep soundly knowing your mattress will go the distance. Upgrade to a Beddy's mattress today for a worry-free sleep experience!
