---
product_id: 637629916
title: "TranquilRelax XLarge Seat Cushion，Soft Foam Cushion for Long Sitting Hours on Office Chair, Home & Car, Non-Slip Chair Pad for Relieving Back & Sciatica & Hip & Coccyx Pain (Black)"
brand: "tranquilrelax"
price: "$163.08"
currency: USD
in_stock: true
reviews_count: 9
category: "Tranquil Relax"
url: https://www.desertcart.us/products/637629916-tranquilrelax-xlarge-seat-cushion-soft-foam-cushion-for-long-sitting
store_origin: US
region: United States of America
---

# High-Density Memory Foam 18.5"x16.92" Large Size Non-Slip Rubber Base TranquilRelax XLarge Seat Cushion，Soft Foam Cushion for Long Sitting Hours on Office Chair, Home & Car, Non-Slip Chair Pad for Relieving Back & Sciatica & Hip & Coccyx Pain (Black)

**Brand:** tranquilrelax
**Price:** $163.08
**Availability:** ✅ In Stock

## Summary

> 🖤 Upgrade your seat, upgrade your day—comfort that means business.

## Quick Answers

- **What is this?** TranquilRelax XLarge Seat Cushion，Soft Foam Cushion for Long Sitting Hours on Office Chair, Home & Car, Non-Slip Chair Pad for Relieving Back & Sciatica & Hip & Coccyx Pain (Black) by tranquilrelax
- **How much does it cost?** $163.08 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/637629916-tranquilrelax-xlarge-seat-cushion-soft-foam-cushion-for-long-sitting)

## Best For

- tranquilrelax enthusiasts

## Why This Product

- Trusted tranquilrelax brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Stay-Put Stability:** Non-slip rubber base locks cushion in place, whether you’re powering through work or navigating traffic.
- • **Posture-Perfect Design:** Beveled edges align your pelvis naturally, transforming any chair into a pain-free productivity throne.
- • **Tailored Pressure Relief:** Ergonomic foam cradles hips & tailbone to banish pain and numbness during marathon sitting sessions.
- • **Firm Yet Cloud-Like Comfort:** Premium memory foam balances resilient support with plush softness—no sinking, no flattening.
- • **Effortless Clean & Versatile:** Breathable, machine-washable cover fits office, car, dining, and even stadium seats—comfort that travels.

## Overview

The TranquilRelax Large Seat Cushion features a generous 18.5"x16.92" size with high-density memory foam engineered for targeted relief of tailbone, hip, and sciatica pain. Its ergonomic beveled edge promotes better posture by aligning the pelvis, while the medium-firm foam offers lasting support without bottoming out. A breathable, removable mesh cover is machine washable, and a non-slip rubber base ensures stability on any chair. Ideal for office, car, or home use, this cushion is a versatile, durable solution for anyone seeking all-day comfort during long sitting hours.

## Description

Buy TranquilRelax Large Seat Cushion，Soft Foam Cushion for Long Sitting Hours on Office Chair, Home & Car, Non-Slip Chair Pad for Relieving Back & Sciatica & Hip & Coccyx Pain (Black): Back & Seat Cushions - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Comfortable - The TranquilRelax Large Seat Cushion is fantastic! The memory foam is very comfortable, providing excellent support for long hours of sitting on an office chair. It helps reduce fatigue and improves posture, making it ideal for work or gaming sessions. The cushion feels professionally made, and the large size fits well on most chairs. For the price, it’s absolutely worth the money — a great deal that combines comfort, quality, and durability. I didn’t find any drawbacks; it performed perfectly from day one. Overall, a highly recommended seat cushion for anyone looking to make long sitting hours more comfortable.
Review: Comfortable, cool, thickness and worth every dollar! - Absolutely worth every dollar”. No paid review, no strings attached. Keep it clean and you are good to go. Fits well oversized, cool and gel-springs right back up after seating long hours. My budget was simple did not want to invest on expensive ergonomic bulky chairs, taking up space in my bedroom with a small computer set up. This two sets of gel cushions keep my back nice and straight and comfortable. The bottom chair gel-cushion has been excellent at keeping its shape and does provide excellent cushioning when sitting anywhere from 6-8 hours. The top back gel cushion-also got from desertcart and it’s absolutely a must! Chair cushion cover Easily washable, but cleans off w a chub too. If you’re looking to create a “small desk station with a nice chair” and provide yourself with comfort if have a limited budget, this is absolutely an ideal set up. Have a nice set up does not require immense expense, just the right necessities! Good support, firmness just right, well designed. The quality is very good for the price. I recently started working from home, remote more and did not want to spend an immense amount of money on chairs and set ups that would take up space in my bedroom, etc., this was just an ideal set up for my laptop and my screen. Bought the desk desertcart too easy set up.

## Features

- 【Targeted Relief for Tailbone & Hips】Experience all-day comfort with our high-density memory foam that expertly cradles your hips and relieves pressure from your sensitive tailbone and sciatic nerve. The beveled edge design is engineered to reduce pressure on the backs of your thighs, to promote optimal circulation and effectively combat pain and numbness during long hours of sitting
- 【Posture-Correcting Ergonomic Design】Say goodbye to slouching! The supportive beveled edge encourages a natural, better sitting posture by gently aligning your pelvis. This helps to prevent and alleviate strain on your lower back and hips, effectively transforming any chair into an ergonomic seat for a pain-free workday
- 【Ideal Firmness for Lasting Support】Say goodbye to the sinking feeling! Unlike soft cushions that bottom out, our premium memory foam provides the perfect balance of cloud-like comfort and firm, resilient support. It molds to your body shape without collapsing, ensuring even weight distribution and lasting durability that won't flatten over time
- 【Hassle-Free Maintenance & Non-Slip Base】The removable, breathable mesh cover is effortlessly machine washable. Paired with a sturdy non-slip rubber bottom, the cushion stays securely in place on any chair—whether you're making a sharp turn in the car or shifting in your office chair
- 【Versatile for Every Seat & A Perfect Gift】With its generous Large size (18.5"x16.92"), this cushion is your go-to comfort companion for office chairs, car seats, dining chairs, wheelchairs, and even stadium bleachers. It’s the thoughtful gift of comfort and practicality for anyone with a sedentary lifestyle, from colleagues to family members

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D1TC1BZW |
| Age Range Description | Adult |
| Best Sellers Rank | #2,092 in Office Products ( See Top 100 in Office Products ) #20 in Back Cushions & Seat Cushions |
| Brand Name | TranquilRelax |
| Color | Black |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,821) |
| Fabric Type | 100% Polyester Mesh Cover |
| Fill Material | 100% High Density Memory Foam |
| Item Dimensions L x W | 16.92"L x 18.5"W |
| Item Firmness Description | Medium Firm |
| Item Weight | 1.21 Kilograms |
| Manufacturer | TranquilRelax |
| Manufacturer Part Number | MPN-TR0001-L-BL |
| Material Features | Breathable, Moisture Wicking |
| Material Type | Memory Foam |
| Material Type Free | Formaldehyde Free, Latex Free |
| Model Name | MPN-TR0001-L-BL |
| Model Number | MPN-TR0001-L-BL |
| Number of Pieces | 1 |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Recommended Uses For Product | Driving, Reading, Resting, Sitting, Traveling |
| Shape | Rectangular |
| Size | X-Large |
| Special Features | Anti-Slip, Moisture-Wicking, Portable, Removable Cover, Breathable |
| Target Use Body Part | Buttocks, Legs |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** TranquilRelax
- **Color:** Black
- **Fill Material:** 100% High Density Memory Foam
- **Size:** X-Large
- **Special Feature:** Anti-Slip, Moisture-Wicking, Portable, Removable Cover, Breathable

## Images

![TranquilRelax XLarge Seat Cushion，Soft Foam Cushion for Long Sitting Hours on Office Chair, Home & Car, Non-Slip Chair Pad for Relieving Back & Sciatica & Hip & Coccyx Pain (Black) - Image 1](https://m.media-amazon.com/images/I/81lNSz1K7mL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Comfortable
*by J***P on January 29, 2026*

The TranquilRelax Large Seat Cushion is fantastic! The memory foam is very comfortable, providing excellent support for long hours of sitting on an office chair. It helps reduce fatigue and improves posture, making it ideal for work or gaming sessions. The cushion feels professionally made, and the large size fits well on most chairs. For the price, it’s absolutely worth the money — a great deal that combines comfort, quality, and durability. I didn’t find any drawbacks; it performed perfectly from day one. Overall, a highly recommended seat cushion for anyone looking to make long sitting hours more comfortable.

### ⭐⭐⭐⭐⭐ Comfortable, cool, thickness and worth every dollar!
*by B***E on June 29, 2025*

Absolutely worth every dollar”. No paid review, no strings attached. Keep it clean and you are good to go. Fits well oversized, cool and gel-springs right back up after seating long hours. My budget was simple did not want to invest on expensive ergonomic bulky chairs, taking up space in my bedroom with a small computer set up. This two sets of gel cushions keep my back nice and straight and comfortable. The bottom chair gel-cushion has been excellent at keeping its shape and does provide excellent cushioning when sitting anywhere from 6-8 hours. The top back gel cushion-also got from Amazon and it’s absolutely a must! Chair cushion cover Easily washable, but cleans off w a chub too. If you’re looking to create a “small desk station with a nice chair” and provide yourself with comfort if have a limited budget, this is absolutely an ideal set up. Have a nice set up does not require immense expense, just the right necessities! Good support, firmness just right, well designed. The quality is very good for the price. I recently started working from home, remote more and did not want to spend an immense amount of money on chairs and set ups that would take up space in my bedroom, etc., this was just an ideal set up for my laptop and my screen. Bought the desk Amazon too easy set up.

### ⭐⭐⭐⭐ Not the worse but not the best. Somewhere in between
*by M***L on February 13, 2026*

This thing was as hard as a rock when it first showed up. Let it sit in front of the heater for 10 min to soften it up. Then I sat on it and almost broke my a** bone 🦴😂. After a few minutes though the comfort set in, but not the most comfortable. Memory Foam, more like Prison foam

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-12*