How To Keep Couch Cushions From Sinking And Sagging (9 Quick Fixes)

Have your couch, sofa or lounge cushions begun to sag or sink from general use?

Maybe your favourite spot on the couch is starting to dip in the middle from years of lounging and relaxing.

Don’t throw your couch to the curb.

It’s easier than you think to breathe new life into sagging couch cushions. Methods range from simple DIY solutions to more complex projects such as replacing the worn and tired springs in your couch.

Don’t forget though, as with almost everything in life – prevention is better than cure, so taking care of your couch properly will ensure comfort and style for years to come!

The following is our simple guide to help prevent your couch cushions from sinking over time.

how to keep couch cushions from sinking

What Causes Sofa And Couch Cushions To Start Sagging?

Besides your bed, the couch is probably the most used piece of furniture in your home.

After all, it is where we gather for parties or settle down for a long night of binge-watching your favourite series. That is why you want to make sure that your couch stays comfortable for as long as possible.

By knowing what causes your cushions to sag, you will be able to act upon it and therefore, get more life out of your trusty couch.

So what causes a sofa cushion to sag? Here are the most common issues:

1.) A Broken Frame

A broken wooden frame will instantly lead to sinking cushions, especially as most couch frames are made of some type of timber or plywood.

To keep your furniture in good shape, it is important that you inspect the sofa for signs of wear and tear regularly so as not to neglect any potential problems before they become a major issue!

2.) Improper Weight Distribution

Have you ever noticed how some parts of your favorite sofa are more worn than others?

When we sit in one position day after day, our weight causes uneven wear on that area which eventually leaves us with an uncomfortable seat cushion.

The answer lies in simply rotating them once every month! This simple move will prevent any isolated sections from being so heavily used while still allowing enough time to go by before redistributing all the pressure evenly across all seats again.

3.) Worn Out Springs

Your couch will sag and quickly become uncomfortable if the springs in your sofa’s cushions have worn out.

To avoid this, don’t flop down on the couch when sitting, or let the kids jump up and down on it!

The more pressure that is placed on the springs by someone jumping or standing up on it, the quicker they will wear away- just like how bed springs start to show signs of sagging after years of use.

how to fix a sagging couch

How Do I Fix A Sagging Couch Or Sofa?

There are many reasons your couch, sofa or lounge cushions could be sagging.

Knowing how to keep couch cushions from sinking involves figuring out what made them sink and sag in the first place!

Read on below as we take you through the 9 best ways to not only prevent your cushions from sinking but how to fix and restore cushions that may already be sagging.

1.) Regularly Fluff Your Cushions

One of the easiest ways to revamp your living room seating and keep your couch cushions from sagging is simple: fluff them by hand (or foot)!

Simply place your sofa cushion on a clean flat surface, and whack it thoroughly! Then flip it over and do that again for each side until you’re satisfied with how full they are.

Do this for all four sides of every couch cushion, then stand back in awe at how much fuller they are. Don’t forget to do the back cushions too.

This method doubles as anger management therapy, you will feel as good as your couch cushions do!

2.) Invest In Quality Furniture From The Beginning

This will be pretty obvious if you’ve owned a few couches over the years – but possibly the best way to prevent sagging couch cushions is to invest in quality furniture from the beginning.

Using quality materials for the frame and upholstery will ensure your couch lasts years longer than something more cheaply made, giving you plenty of time before having to worry about replacing it—or dealing with saggy sofa cushions for visitors!

3.) Flip Cushions Regularly To Prevent Sagging

Cushion flipping is a good way to avoid the dreaded sofa sag.

If you spend most of your time sitting in one place, your body weight is enough to make the fibre filling in the cushion compress and start to sag.

Turning the cushions every few days can help even out wear and tear on both sides so it doesn’t sag over longer periods of time or under heavy use!

4.) Washing Your Cushion Covers Regularly

Washing your cushion covers can help them keep their shape and avoid sagging.

This may seem obvious, but if your couch cushions are of the type that need regular washing, then make sure you remove the foam filling before doing so (we’ve heard of some horror stories!).

Also, be sure to check if dry cleaning is necessary instead – carefully read instructions in order to take appropriate action for keeping them clean and long-lasting.

5.) Add Batting (Polyester Fiberfill)

Quilt batting (also called ‘polyester fiberfill) is cheap, robust and a great way to add some extra volume to sagging couch and sofa cushions.

If your couch cushions have a simple zip on the side, you can simply open the cushion and add as much polyester fiberfill as you need under the original foam to make your cushions firm again.

See the difference $5 polyester fill can make is this quick video below from Amanda Fallon Real Estate!

6.) Replace The Foam Insert In Your Couch Cushion

Another cheap and effective fix is to simply buy replacement foam inserts.

These are easy to find and are purpose-designed for worn-out seat cushions.

Replacing your old foam with new foam inserts will breathe new life into your sagging sofa and make it feel like new again.

Simply add the new inserts into your unzipped cushion cover, then compress the newly inserted foam so it doesn’t shift around as you’re using them.

Zip back up, and voila: You’re ready to get cozy on those seats once more.

7.) Use Anti-Sag Supports

If your cushions are in good shape but the jute webbing holding them up is starting to stretch or sag, consider using a specially designed support such as Laminet Supports or Sofa Savers.

They can be purchased from your local craft store and are designed to provide additional support to prevent your couch cushion from sagging and at the same time, give additional weight-bearing capacity to ensure the longevity of your sofa cushions.

8.) Using Plywood Or Cardboard Under Cushions

The DIY version of anti-sag supports is trusty old plywood.

A quarter-inch sheet of plywood cut to the dimensions of your couch is an easy remedy for a sagging couch or sofa.

Simply attach it to your couch frame under the cushions. Make sure you sand it first to ensure smooth edges and no sharp corners. You could even cover the edges in duct tape. Nobody likes splinters!

9.) New Springs To Stop Your Cushions Sagging

If you have springs in your cushions or couch and you can identify that they are worn and compressed – then this is your fix.

In couches and cushions of this type – sagging is often caused by old and broken down springs that can’t provide enough support for the cushioning anymore.

Newer springs from a reputable manufacturer will prevent sinking – they’ll have stronger tension so it won’t settle as much; preventing any further damage and ensuring weight is distributed evenly.

This job is a bit more in-depth than the other methods on this list so this might be the point where you call the professionals.

However, it isn’t an impossible DIY task, and if you’re feeling bold and particularly handy – this great video below is an excellent walkthrough on how to replace the common couch and sofa ‘zig-zag springs’

how to keep couch cushions from sinking down


There you have it.

Hopefully, by following our guide you don’t need to throw out your old sagging sofas, couches, lounges or love seats and all of their cushions!

Take the time to give them some TLC and your favorite furniture can last for many years yet.

About Darcy O

Loves good coffee, good design and a good nap on a good couch!

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