SitCushion

Extra Large Memory Foam Seat Cushions for Office Chairs Pressure Relief Seat Cushion for Tailbone Pain Relief Sciatica

66+ bought in the past month

$59.99$69.97

About this item

  • SPARE REMOVABLE COVER INCLUDED (Dark Gray color) Includes a spare cover for uninterrupted comfort. Simply swap cover while one is in the wash.
  • RELIEVES SCIATICA, TAILBONE & BACK PAIN This Ergonomic Memory Foam Seat Cushion reduces pressure on your tailbone, spine, and hips. Ideal for sciatica pain relief, coccyx discomfort, and lower back pain during long hours of sitting at work or in the car.
  • EXTRA LARGE SIZE FOR FULL SUPPORT (15% LARGER & THICKER) This seat cushion is Extra-Large, providing wider coverage for hips and thighs. Designed for Superior support, it helps reduce pressure and fatigue during extended sitting on office chairs, car seats, wheelchairs, and more.
  • SEEKING PROVEN RESULTS? (DOCTOR-RECOMMENDED FOR POSTURE & RELIEF) Endorsed by healthcare experts, this pressure relief seat cushion supports healthy spine alignment and improves sitting posture. Ideal for herniated disc relief, tailbone pain, or as a trusted sciatica pillow for daily use.
  • RISK-FREE COMFORT – LIFETIME GUARANTEE INCLUDED Test our ergonomic memory foam seat cushion with total confidence. If it’s not right for you, you're protected by our lifetime money-back guarantee. No stress, no risk — just a simple, trusted way to invest in your daily comfort.
  • A MEANINGFUL GIFT FOR COMFORT & WELLNESS Show you care about their health by gifting the ergonomic seat cushion. Perfect gift for seniors, drivers, or anyone who sits for long hours. Whether recovering from back pain or seeking everyday comfort, this office chair seat cushion brings thoughtful relief and improved well-being.
  • TRUSTED BY USERS, MADE FOR REAL COMFORT Thousands rely on this coccyx cushion for tailbone pain and everyday support. Whether you’re working, driving, or recovering, it delivers the pressure relief and healthy posture you need — without compromise.
  • IMPROVES POSTURE & COMFORT DURING LONG WORK HOURS This ergonomic office chair cushion promotes healthy spine alignment and transforms any desk chair into a supportive seat. It reduces back pain, improves circulation, and helps prevent numbness and fatigue during prolonged sitting.
  • PORTABLE DESIGN WITH BUILT-IN HANDLE Take it anywhere with the built-in handle. This computer chair cushion fits perfectly on office chairs, car seats, gaming chairs, and wheelchairs — delivering consistent ergonomic support and pressure relief in any setting.
$59.99
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Product details

BrandSitCushion
Special Feature15% Larger and Wider for more Comfort and Support. Seat Cushion, Orthopedic Cushion for Sciatica, Carrying Handle, Washable and Breathable Cover, Removable Cover cushion for office chair, Portable memory foam car seat cushion, chair cushion for office chair, office desk accessories See more
ColorBlack & Dark Gray
SizeX-Large
Fill MaterialCharcoal Infused Memory Foam

Technical specifications

brandSitCushion
special_feature15% Larger and Wider for more Comfort and Support. Seat Cushion, Orthopedic Cushion for Sciatica, Carrying Handle, Washable and Breathable Cover, Removable Cover cushion for office chair, Portable memory foam car seat cushion, chair cushion for office chair, office desk accessories
colorBlack & Dark Gray
sizeX-Large
fill_materialCharcoal Infused Memory Foam
shapeSemicircular
age_range_descriptionAdult
recommended_uses_for_productSitting
use_forLegs
materialMemory Foam
item_firmness_descriptionMedium Firm
product_dimensions18"L x 20"W
product_care_instructionsExtra Cover Machine Washable. Do Not Wash Memory Foam Seat Cushion, Remove Inner and Outer seat covers from the core (premium memory foam). Covers are machine washable on a gentle cycle with cold water. DO NOT PUT MEMORY FOAM IN WASHER OR DRYER.
number_of_pieces2
patternSolid, Ergonomic Design
material_featureBreathable, High Dense Memory Foam, Carring Handle, Durable Zip, Bamboo Charcoal Premium Memory Foam
material_type_freeBPA Free
fabric_type100% Breathable Cotton
model_nameBlack Seat Cushion With Extra Cover (Dark Gray)
upc198715447248
manufacturerSitCushion
unit_count1.0 Count
item_weight3.19 pounds
item_model_numberSC-Ergo2024- Black
best_sellers_rank#4,501 in Office Products ( See Top 100 in Office Products ) #31 in Back Cushions & Seat Cushions
date_first_availableOctober 9, 2024

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Customer reviews

4.41,614 ratings

Customers say

Customers find the cushion comfortable, with one noting it prevents numbness during long periods of sitting, and many reporting immediate relief from chronic back pain. Customers appreciate its functionality, with one mentioning it works well for various yoga positions.

★★★★★

This cushion works 💯 % for relief!!!

SusanDecember 8, 2025

This chair cushion is exceptional. It does everything it says it will and It is nice and X-large too!!! My sciatica pain is hardly noticeable anymore!!! Spot on!!! I highly recommend this !!! Very comfortable!!! Read more

★★★★★

Excellent comfort and quality cushion!

KarineOctober 4, 2025

I’m really impressed with this cushion, it has completely changed the way I feel when sitting for long hours at my desk. The comfort is amazing, it relieves the pressure on my tailbone and lower back, and I’ve noticed my posture improving a lot. The material feels very durable and high quality, and on top of that it looks great on my chair. I also love that it comes with an extra cover, which makes it practical and easy to keep clean. Overall, this cushion is comfortable, stylish, supportive and built to last, truly one of the best purchases I’ve made for my home office. Read more

★★★★★

Total Game-Changer for Anyone Who Sits All Day!

ABDOctober 9, 2025

I work long hours at my desk, and this ergonomic memory foam cushion has made such a difference. From day one, I noticed less pressure on my tailbone and lower back, and my usual sciatica pain has eased up noticeably. It’s incredibly comfortable without being too soft — just the right amount of support. The extra-large size fits my office chair perfectly and doesn’t shift around like some others I’ve tried. I’ve even used it in my car on long drives, and it’s equally amazing there. The cover is soft, breathable, and easy to remove for washing, which is a huge plus. If you sit for work or travel frequently, this cushion is worth every penny. It genuinely helps with posture, comfort, and back relief — highly recommend! Item was provided by brand for content creation purposes Read more

★★★★☆

It's worth the money

David E. TaylorDecember 1, 2025

Excellent cushion Very comfortable and it fits the seat of my truck Read more

★★★★★

Best of the best

AdamDecember 3, 2025

Here’s a short, funny version for car use: ⸻ Got this cushion for my car and wow—no more numb butt or grumpy spine on long drives. It’s firm but comfy, keeps my posture in check, and even comes with two washable covers for all my “oops” moments. It’s wide, supportive, and basically turned my car seat into a first-class upgrade. 10/10 would road-trip again. Read more

★★★☆☆

Felt comfortable at first but ended up creating more pain.

TomorthomasJune 24, 2025

I really wanted to love this Sit Cushion model - it feels super comfortable and supportive at first, like it's hugging the contours of my body. But after a while the curved backing seem to be pressing on me in the wrong way and I ended up with more back pain than I started with. For what it's worth, I compared it to three less expensive cushions, including the Kabooti (too stiff for me). I ended up settling on the one from Everlasting Comfort. It's more of a memory foam style cushion but has the tailbone cut-out like the others, and that seemed to be the best option for me. This seems to be the type of product that's like trying on shoes, so stick with it - you're bound to find one that you love! Read more

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★★★★★

Very comfortable seat cushion

Nazar NykoliakOctober 29, 2025

I am so happy with this seat cushion. It’s great quality, very soft. It comes with a removable cover. The cover is easy to remove and wash, which is a plus. I sit for hours every day, and my tailbone used to get sore and numb. After a few days of using this, I noticed a big difference — way less pain and pressure. I think it even helps me improve my posture. Highly recommended. Read more

Review image 1
★★★★★

I can sit comfortably for hours

T. F. T.November 1, 2025

I live with several spinal issues as well as issues with my coccyx or tailbone. I also work in front of a computer and need to sit, sometimes for hours at a time. This cushion provides relief at a level I have not experienced with any other cushion. I've begun using it not only on my office chair but also on my dining room chair and even the sofa. Often I experience no pain at all even after long periods of sitting. The underside of the cushion features a nom-slip, partially rubberized surface that keeps the cushion in place effectively The extra cover is a nice bonus. This is not the least expensive orthopedic seat cushion, certainly, but I have found it well worth what I paid. Read more

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