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How to stuff sofa cushions & give new life to a saggy couch!

Since being pregnant, I have really increased the amount of time that I spend laying on my couch.

We have had this couch for only about 3 years, but it hasn’t held up.

As my friend told me, “buy cheap and weep”. The sofa has just really not held up well and is saggy and you can feel the metal springs in your butt when you sit down.

I desperately wanted to buy a new sofa, but Sean shot that down completely.

He describes the couch as “totally fine” and while I can usually convince him to change his mind, he was not going to allow me to buy a new couch without it becoming a big fight.

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How to stuff sofa cushions - restuff a saggy couch before and after DIY tutorial

In the interest of our marriage, I decided to pursue options for reshaping and fluffing our existing sofa to make it more comfortable for my tired third trimester and a maternity leave of nursing a baby.

I did a little research and decided to order some new foam and stuffing to try to replenish the saggy pillows.

I spent about $100 on replacement foams for this project.

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How to stuff sofa cushions left is before right is after

In the above photo, you can see the original cushions on the left and the re-stuffed cushions on the right.

This process will definitely make couch cushions look tighter and more full! It’s a great way to make your couch cushions firmer.

What to use for couch stuffing

To re-stuff seat cushions, you should use high-density foam.

Of course, you can use any sheet of foam, but you don’t have much space inside the cushion cover, and regular foam doesn’t give much cushion per-inch. High-density foam is more expensive, but you will really feel it!

To re-stuff pillows, you will want to use polyfil. This is like traditional pillow fill and is easy to add by the hand full. This is also the best filling for sofa back cushions.

Where can you buy foam for seat cushions?

You can get high-density foam at most craft and fabric stores. I prefer to order on Amazon since it’s convenient and they have easy free returns!


How to stuff sofa cushions & give new life to a saggy couch!

Click here to get this project tutorial in a free printable PDF.

What you need to stuff sofa cushions

How to re-stuff sofa cushions


First, remove your cushions and clean the couch. I vacuumed under each cushion (there was a lot of dirt + sand in there).

I also lint-rollered all of the pillows and cushions.

This is a great time to tighten the legs of your chair or throw any pillow covers into the washing machine for a really fresh start.How to stuff sofa cushions remove sofa cushions from their covers
How to stuff sofa cushions use gorilla glue spray adhesive to adhere replacement foam to existing cushion


Start with a seat cushion. Unzip the cover and pull out the insert.


Measure the length and width of the cushion. Cut that size of foam.


Cut a piece of foam to the size of the top of your cushion. You can use sharp scissors or an electric knife if you have one.


Use spray adhesive to attach the foam to the top of the cushion.

Follow the instructions on your can of spray adhesive and give it time to dry – you’ll be glad that you did!

How to stuff sofa cushions replacing cushion seat with new foam


Insert the cushion back into the cover. This might now be a really tight fit.

Go slowly so you don’t damage the cover and it can help to have a second set of hands! Zip up the cover and you are done.
How to stuff sofa cushions replacing stuffing with polyfil


Now address the seat back cushions. Unzip each cover.


Add polyfil to the side of the cushion that will face your back.

I used about 2/3 of a 20oz bag on each seat back. Be sure to shove it into the corners and edges and then zip the cover back.


Replace all of your cushions and repeat until you are done! Your couch should now look a lot tighter and less saggy and feel a lot more comfortable to sit on.

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Any questions about how to restuff couch cushions?

Video demonstration

Be sure to check out my video demonstration of stuffing our sofa!

how to restuff sofa youtube thumbnail

Click here to get this project tutorial in a free printable PDF.

How to stuff sofa cushions - restuff a saggy couch before and after DIY tutorial
Yield: 1 newly stuffed sofa

How to stuff sofa cushions & give new life to a saggy couch!

Active Time: 1 hour
Total Time: 1 hour
Difficulty: Easy
Estimated Cost: $50-100

Sofas are expensive to replace! Here is how to save some money and re-stuff your saggy couch instead.


  • 2" upholstery foam (linked below)
  • Polyfil (linked below)
  • Spray adhesive (linked below)


  • Scissors


  1. Remove your cushions and clean the couch.
  2. Unzip the seat cushion cover and pull out the insert. Measure and cut foam to fit.
  3. Use spray adhesive to attach foam to cushion.
  4. Insert cushion back into the cover.
  5. Unzip seat back cushions. Add Polyfil until they are fluffy. Re-zip.
  6. Replace all cushions on couch.

Did you make this project?

Please leave a comment on the blog or share a photo on Pinterest

Do you have a saggy couch? Would you try to update it or just replace it?

Be sure to click over and check out my favorite cheap couches!

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    Jackie Wallace

    Friday 9th of July 2021

    I needed this tutorial! I am totally going to try this out this weekend in my home here in Polk County. I am having my carpets cleaned next week too, it is going to feel like a whole new living room. Can't wait!

    Amanda Massey

    Friday 4th of September 2020

    I’m currently pregnant with number 2 and could barely get off of our couch, which has down feathers on both sides of the existing foam. After stuffing two cushions I cannot rave enough about how perfect this process is!


    Sunday 6th of September 2020

    I am so glad that it helped!!


    Sunday 16th of August 2020

    Hi Sharon, thanks for this tutorial. Out of curiosity, why did you glue the foam to the old insert, rather than replacing the entire insert with thicker foam? Is there a benefit to keeping the old insert (e.g. is it more comfortable than getting entirely new foam)? Thanks!


    Monday 17th of August 2020

    We were trying to add more thickness and fullness and didn't have new foam that was that thick. The foam is sold in a much thinner form than what is in the sofa, so we added to it.


    Friday 14th of August 2020

    This is the ONLY tutorial that I can find that does what you did. I have ordered my 2" foam, thank you!

    The only thing I would add is I did just order some dacron batting to put around the cushion so it "fills up" and doesn't look like we added foam on top.

    Thanks for also pointing out to add the foam to the top of the cushion where we sit and not the bottom like some other items you'd add make it seem.

    Really appreciate it!


    Monday 17th of August 2020

    Glad to help!


    Wednesday 10th of June 2020

    Hi Sharon- I love this!!! I’m assuming the # of foam pads depends on the length of the sofa involved... but did you end up needing more than 1 pack of the foam for your project?

    Also, I’m considering quilt batting vs the foam- but wanted to know if you did similar research! Would you say the foam top cut is easier to apply and insert back into the cushion than quilt batting?


    Wednesday 10th of June 2020

    Hi! Yes we used less than one pack of foam - about 2/3 a pack. Quilting batting would not have the same effect. It would fill in any looseness in the pillows but would not provide the extra cushioning that high density foam adds.

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