Extra Firm Couch Cushion Inserts

Upgrade your sagging sofa with our Couch Cushion & Sofa Support Board, designed to restore firmness and comfort in minutes. Crafted from ultra-durable 0.75"" thick high-quality wood, this board provides long-lasting support, outperforming MDF or particle board alternatives. Measuring 19.25” wide, it covers more surface area, helping reinforce worn-out springs, frames, or cushions.Featuring slip-resistant grip dots on the underside, the board stays securely in place during daily use, while the rounded corners help prevent damage to your sofa fabric. Installation is quick and easy—just unfold the board, place it over your sofa frame, and replace the cushions on top.It is good for armchair, back cushion for couch, back support for couch, bed board, bed boards for under mattress, couch back cushions, couch blocker, couch cushion replacement, couch cushion support, couch cushion support for sagging seat, couch cushion hook & loop fastener to prevent sliding, couch cushions replacement, couch foam replacement cushion, couch pads for sofa, couch stoppers to prevent sliding, couch support, couch supporter for under the cushions, couch supports for sagging cushions, cushions for sofa, deep seat cushions, extra deep couches, foam for cushions, large couch, love seat couches, loveseat cushion, replacement couch cushions, under sofa blocker. This foldable and stackable design ensures a universal fit, suitable for most standard sofas, loveseats, and small couches. Be sure to measure the inside arm-to-arm seat width before purchasing. This model measures 23 inches long and can support up to 400 pounds. Perfect for breathing new life into your living room seating—comfort, support, and durability all in one.

I really was impressed with this. Anonymous. Fri Oct 16 2026

The High-density foam is highly durable and long-lasting it has multiple uses. Enjoy this foam as mattress topper, bed support, furniture cushion car/ boat cushion any many more.

These worked exactly like I needed them to do to make new cushions for the couch that I bought that wasn’t exactly soft anymore. Anonymous. Fri Oct 09 2026

Couch Cushion Support for Sagging Seat 20X20X2 Inches Couch Supports for Sagging Cushions, High Density Foam Sofa Cushion Support Light Grey Set of 3

They were exactly as described however we were trying to "prop up" a less than decent couch that an older family bought against everyone's wishes. I would have kept them and used them if I had a reason.. Thomas. South Lebanon, OH. Tue Oct 13 2026

Our couch cushion support is specifically designed to improve the support of sagging sofa seats and restore them to their original form. Made of high-density foam, our under couch cushion support provides exceptional stability for your sofa seats.our couch cushion support for sagging cushions are precisely measured at 20x20 inches, featuring a 2-inch thickness at the center and 1.2 inches on the edge.

Actually felt a difference in my couches. Glad I made the purchase.. Latoya. Greensboro, NC. Sun Oct 04 2026

This couch cushion support board helps restore firmness to sagging sofas and worn seats. Made with a solid wood composite core, it creates reliable support beneath cushions. The foldable design makes it easy to store and organize, and the non-slip fabric cover helps to keep it in place. Simply insert it under cushions for a refreshed seating experience.

This square sofa cushion is designed for maximum comfort and flexibility. It features high-resilience foam combined with an internal spring construction, delivering a balanced feel of softness and support that resists sagging even after prolonged use. The cushion comes with a removable, machine-washable white inner cover, allowing you to see the high-quality foam inside. You can easily use it with your own favorite slipcovers or cushion cases to match any decor. Ideal for replacing worn sofa cushions, DIY chair pads, or adding comfort to window seats and banquettes. Available in multiple sizes.

This is a wonderful couch replacement cushion. It comes with a zipper cover in grey as well. It is well constructed and comfortably firm. However, it did not fit my couch. Before I could think about returning it, my dog claimed it as her own. It is probably the fanciest dog bed she has ever had. Although I am sorry it did not fit my sofa, I am happy it is making my dog happy. She loves it. If it will fit your couch or chair, I highly recommend it. It is a quality cushion.. Marykay. Houston, TX. Thu Oct 15 2026

Renew saggy furniture with our 24×24 inch high-density foam replacement pad. We provide 5 thickness options from 2 to 6 inches, and this foam can be DIY trimmed into rectangles, T-shapes, trapezoids and more. Vacuum-packed for delivery, it fully regains its shape within 48–72 hours. Soft, sturdy high-density foam delivers lasting comfort, letting you refresh your sofa, dining chair, boat or bay window without purchasing new furniture.

They came quickly and were exactly what I was looking for. They slid into my couch cushion covers super easily. They do take 72 hours to fully "inflate," and I have not reached that time frame yet but so far I am very pleased!!!. Lee Ann. Crofton, MD. Thu Jun 25 2026

3PCS Trapezoidal 20" X 20" Couch Cushion Support for Sagging Seat, 40D High Density Foam Sofa Couch Cushion Inserts Support, White, Repair Sofa Dents to Improve Comfort

I was very pleased that these “cushion boosts” are so effective. My chair and loveseat are renewed! Thank you.. Clara Ruth. Pasadena, TX. Thu Apr 30 2026

Heavy Duty Couch Cushion Support Board to Fix Sagging Sofas, 21.5 x 78 Oversized Sofa, Thick Plywood Boards Add Strong Seat Supports, Stay in Place Replacement Stuffing Under Couches Gray

Works great. Susan. US. Mon Nov 17 2025

The existence of modular sofas allows you to give full play to your imagination. It can be combined into any shape you want and can adapt to the different living needs of each family. Modular sofas are the best sofa choice.

Arrived as expected! Easy installation! Perfect size for small living areas.. Aura. Sun Jun 07 2026

Couch Cushion Support for Sagging Cushions 20''x20'', Two in One Sofa Cushion Support to Repair Sagging Seats, Lift Saggy Seats, Extend Couch's Life, Blue & Grey 3PCS

Great buy. Moms sleeper couch was sinking. This was great for stability. Tricky to place cushions may have to trim one, but worth it.. Priscilla. Naples, FL. Sun May 24 2026

Elevate your home with our versatile Martex Euro Pillow Insert. This European Square Pillow Insert has a breathable Polyester Cotton blend cover fabric that provides long-lasting quality and comfort. Filled with a super plush 100% Polyester fiber, these pillows are perfect for decorating, lounging, or adding extra support whether sleeping, reading or watching TV. With a legacy spanning generations, Martex is synonymous with delivering the comforts of a happy home by offering superior quality products tailored for discerning consumers. Our pillows measure 26” by 26” and fit most Euro Sham Covers. Machine wash cold in a large capacity machine, gentle cycle, wash with similar colors, only non-chlorine bleach when needed, tumble dry low in a large capacity machine, remove promptly.

Needed three so I purchased a two pack of another brand. Hope they are as nice as this one. Filled the sham nicely.. Lynn. US. Wed Apr 29 2026

Incredibly comfortable velvet: Includes 3 pieces. Made of luxurious velvet plush fabric, it has the characteristics of thick, soft, smooth, anti-wrinkle, fast fading, durable, and strong elasticity. Protect your upholstered furniture from everyday wear and tear, stains, and scratches from children, pet paws, dogs, or accidental spills.

These were not quite as big as I had hoped for because my couch is huge, but they do work for my back cushions still excellent quality and they stay on the cushions nicely. Very soft and perfect color. Erica. Kansas City, MO. Mon Oct 12 2026

Settle in and relax with the Oversized Seat Cushion. Designed with ample width and depth, this cushion delivers added support and softness to your seating experience. Measuring 19" wide by 17" deep and 3" high, it’s an ideal fit for office chairs, helping to promote better posture and reduce back discomfort. Whether you're working long hours or heading out on a road trip, this supportive cushion is a travel essential. offers top-quality seat cushions, office chair pads, and memory foam comfort solutions to help you sit more comfortably, wherever you are.

This is a very comfortable cushion! It upholds two different weights. It made my office share that quickly went flat far more comfortable for hours of work sessions.. Anonymous. Tue Sep 22 2026

Elevate your home comfort and creativity with our 2PC Square High Resilience Foam Cushions. Crafted from high-density foam, they deliver exceptional support and superior resilience—quickly bouncing back to shape without deformation, even after prolonged use. Designed for easy customization, these pads can be cut to any size or shape, making them perfect for DIY projects, replacing sofa cushions, upgrading dining chair pads, or crafting cozy floor cushions. With multiple size options and a versatile design, they’re ideal for a range of scenarios, from furniture makeovers to unique creative endeavors. Bring durability, personalization, and comfort to your space with this value-packed two-piece set.

Perfect to fit inside our outside cushions. Inexpensive way to update outdoor cushions by purchasing cushion covers and foam.. Terryl. Ellijay, GA. Tue May 12 2026

Elevate your home comfort and creativity with our High Resilience Foam Sheet. Engineered to disperse pressure evenly and deliver stable, fast-rebound support, this foam maintains its shape without collapsing—even after long hours of use. Boasting a high-density structure that resists deformation, it also features an easy-to-cut design, empowering you to customize it for any project. Whether you’re revamping sofa cushions, crafting a cozy pet bed, or diving into unique DIY endeavors, this versatile foam is up to the task. Available in multiple sizes, it’s the all-in-one solution for furniture decoration, item protection, and all your imaginative pursuits. Bring durability, comfort, and personalization to your space today.

I used this pad to add additional cushy-ness to another seat cushion. It is a very nice addition.. Ann. Columbus Oh. Fri Jun 26 2026

The 3-inch mattress topper comes with a firm density. Ideal for back and stomach sleepers looking for added firmness and stability. (Actual feel may vary based on personal preferences)

My bed was too soft but this topper already made it much better.. Naya. Laurel, MD. Tue Jul 21 2026

Everyone has different sleep styles and needs. The density pillow line was designed for the individual sleeper to custom fit those styles and needs. Whether you are a stomach, back, or side sleeper you can choose the perfect pillow that's designed to give your neck, shoulders, and back the proper support and spinal alignment that they need. Thus, giving you the best night's sleep possible. Every DreamSleep density pillow shell is constructed out of 200 thread-count kinds of cotton and is filled with 100% Slumbersoft hypo-allergenic polyester fill. A gusseted custom color quilted sidewall was engineered into the pillow to provide extra support and reinforced corded edges are added to hold it all together and eliminate breakdown. Choose the medium density with a green 1-inch sidewall and 29 ounces of fill if you are a stomach sleeper, the blue firm density with a 1. 5-inch sidewall and 32 ounces of fill are for back sleepers, and purple extra firm density with a 2-inch sidewall and 34 ounces of fill is for side sleepers. This pillow is naturally hypo-allergenic for sensitive sleepers and for added convenience machine washable.

sorry not really dense enough i know it's hard for me to get i put two of them together though. Phil. Deerfield Beach, FL. Mon Aug 10 2026

Couch Cushion Support for Sagging Seat 20X20X2 Inches Couch Supports for Sagging Cushions, High Density Foam Sofa Cushion Support Dark Grey Set of 3

These are great!! They gave my sofa a new life!! The frame is still strong, but the cushions needed support. So happy with results.. Stephanie. Greenfield, IN. Sun Nov 16 2025

Made of durable high-density resilient foam, this wedge pillow also works as a supportive firm pillow that maintains its shape and delivers personalized long-term support. Its medical 9° slope with 5-inch elevation aligns the spine and airways to reduce snoring and body pressure. The zippered breathable cover is removable and machine washable (foam not submersible).

I needed something not too big and this was perfect!!. Teresa. Salt Lake City, UT. Tue Sep 22 2026

This 2-pack 72×24in high-density foam pad revives saggy sofas, benches and bay windows. Vacuum compressed for easy shipping; remove film and wait 24–48 hours for full recovery. 1–6 inch thickness options available, freely cuttable to fit furniture. It features strong support, fast rebound and long durability, ideal for indoor and patio use. You can renew two cushions or keep one spare.

Great product, definitely high density but not uncomfortably stiff. Excellent Price. Sally. Raleigh, NC. Mon Aug 03 2026

This cushion pad brings layerable comfort to your indoor or outdoor space. It's crafted with a polyester shell that offers a smooth surface, making it an easy companion for decorative covers, while the polyfill material creates a supportive feel that holds up to everyday use. It's designed with weather-resistant construction to handle changing elements, so you can transition it between spaces without worry. The sewn-closed closure holds the fill evenly in place. Plus, its reversible design features the exact same fabric on both sides for uniform style and balance.

This pillow is perfect! It is soft and comfortable and fits very well in my new pillow cover.. Cynthia. Selbyville, DE. Sat Jul 04 2026

Transform your home comfort and creativity with our Square High Resilience Foam Cushion. Crafted with high-density material, it boasts exceptional resilience—quickly regaining shape after use and resisting dents even with prolonged sitting. Its easy-to-cut design empowers you to customize it to any size or shape, making it a perfect fit for DIY projects, furniture upgrades, or crafting one-of-a-kind items. Whether you’re replacing sofa cushions, enhancing car seats, or creating cozy pet beds, this versatile foam delivers stable support and a soft, breathable touch. Available in multiple dimensions, it’s the go-to solution for office chairs, bay window mats, shoulder pads, and all your imaginative endeavors. Elevate durability, comfort, and personalization in every corner of your space.

Meet expectations. Anonymous. US. Tue Sep 15 2026

Couch Cushion Supports for Sagging Cushions - Sofa & Couches Seat Saggy Cushion Saver & Lifters, 20x20x2 Couch Supporter for Under The Cushions, 3-Pack, Gray

Stacy, I bought the cushion supports for the new Freda couch and loveseat we just purchased from you. They didn’t help much. I know you offered to take them back and gave me some money but I thought there was something I could do because the couch and loveseat were exactly what I wanted. What I’m asking is please don’t sell them to anyone else. There is something wrong with the fabric. I’ll probably return the couch supports. If you have any other ideas please let me know. Steve Willisms. Steve. Gold Canyon, AZ. Sat Mar 07 2026

Pack of 2 water resistant pillow inserts for both indoor and outdoor, fill all your decorative pillowcases perfectly for couch, bed or chair with comfort and support

Phantoscope throw pillow inserts are your brilliant choice for decorating sofas or lumbar support, you will also feel great to lay your head on it to have an afternoon nap. The pillowcases are made of 100% pure cotton, which is skin-friendly, comfortable, and breathable; the pillow filling is made of high-quality hypoallergenic polyester fiber, which is fluffy and soft. The edges are specially treated for durability and neatness, effectively preventing loose threads and damage.

I love the inserts. They fit my covers very well and have made my bed super cozy looking.. Tammie. NM. Tue Sep 15 2026

Couch Cushion Support for Loveseat Sofa High Density Foam 44"x20" Inches Sofa Couch Supports for Sagging Cushions Light Grey 1PC

Whether for indoor or outdoor use, our customisable cushions are designed to suit your needs! Made from high-end materials and offering a wide range of customisation options, our cushions combine comfort and versatility.

I was very pleased with the item. Size was just perfect for my needs, quality looks good, color was actually phenomenal (matched well with what showed online). Fabric is nice and smooth zipper for removal/washing. I am really happy with this purchase.. Claudia. Antelope, CA. Sat Aug 29 2026

Give your outdoor living space a fresh look with this comfortable pallet cushion in an instant!