---
product_id: 441959931
title: "Onyx Orthopedic Office Chair | Patented SmartGRID seat | Adjustable Lumbar Support | Ergonomic Sitting Posture | High Back Chair | Work, Home, Study | Free Installation | Grey"
brand: "the sleep company"
price: "KSh197653"
currency: KES
in_stock: true
reviews_count: 8
category: "The Sleep Company"
url: https://www.desertcart.co.ke/products/441959931-onyx-orthopedic-office-chair-patented-smartgrid-seat-adjustable-lumbar-support
store_origin: KE
region: Kenya
---

# 360° swivel with anti-scratch wheels Patented SmartGRID cushioning 2D adjustable lumbar & headrest Onyx Orthopedic Office Chair | Patented SmartGRID seat | Adjustable Lumbar Support | Ergonomic Sitting Posture | High Back Chair | Work, Home, Study | Free Installation | Grey

**Brand:** the sleep company
**Price:** KSh197653
**Availability:** ✅ In Stock

## Summary

> 🛋️ Elevate your workday comfort — because your spine deserves the best!

## Quick Answers

- **What is this?** Onyx Orthopedic Office Chair | Patented SmartGRID seat | Adjustable Lumbar Support | Ergonomic Sitting Posture | High Back Chair | Work, Home, Study | Free Installation | Grey by the sleep company
- **How much does it cost?** KSh197653 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/441959931-onyx-orthopedic-office-chair-patented-smartgrid-seat-adjustable-lumbar-support)

## Best For

- the sleep company enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Setup & Warranty:** Get up and running in under 20 minutes with DIY installation or free professional setup in select areas, backed by a 3-year hassle-free warranty.
- • **Ergonomic SmartGRID Comfort:** Experience weightless support with patented SmartGRID tech that cradles your tailbone and keeps you cool all day.
- • **Sleek, Professional Aesthetic:** Elevate your workspace with a high-back, grey ergonomic chair designed for office, home, or study environments that commands respect.
- • **Seamless Mobility & Durability:** Glide effortlessly on chrome-finished, anti-scratch 60mm nylon wheels with a heavy-duty Class 3 gas lift supporting up to 150kg.
- • **Customizable Posture Perfection:** Dial in your ideal sitting position with 2D adjustable lumbar support, headrest, and armrests plus a tilt-lock backrest from 90° to 135°.

## Overview

The Sleep Company Onyx Orthopedic Office Chair features patented SmartGRID technology for superior cushioning and spinal support, 2D adjustable lumbar and headrest for personalized ergonomics, and a robust Class 3 gas lift with 360° swivel wheels. Designed for long hours at work or home, it offers easy DIY or professional installation and a 3-year warranty, making it a premium choice for millennial professionals seeking comfort and style.

## Description

The Sleep Company Onyx Orthopedic Office Chair | Patented SmartGRID seat | Adjustable Lumbar Support | Ergonomic Sitting Posture | High Back Chair | Work, Home, Study | Free Installation | Grey : desertcart.in: Home & Kitchen

Review: Good office chair with Lumbar support - This office chair I snagged online has been a total game-changer for my workday. Seriously, it's so comfortable, I actually look forward to sitting down at my desk now. The lumbar support is just right, and the adjustable features let me dial in the perfect position. Plus, it looks pretty sharp in my home office setup. Definitely a solid purchase for anyone spending long hours seated.
Review: Value for money - Product is amazing. Great comfort for the money. Installation was quick and seamless

## Features

- Patented Smartgrid Technology - Onyx Seat & Back Support Are Designed With Our Patented Smartgrid Technology Which Cradles Your Tailbone And Provides Extra Cushioning To Your Tushy For Long Working Hours. Be It In An Office Or Wfh Setup Smartgrid No Pressure Support Allows Your Spine To Stay In Its Natural Posture And Gives You A Feeling Of Weightlessness. Not Just That It Has Multiple Air Channels To Ensure Your Seat & Back Stay Cool And Comfy.
- Diy Installation / Easy Assembly - 3 Steps Diy Installation (Installation Steps Included In The Manual), Takes Less Than 20 Mins For Installation.
- Warranty & Quality - Made In India | 3 Years Manufacturer'S Professional And Hassle-Free Warranty Applicable From The Date Of Delivery | Ista Standard Packaging For Reducing In-Transit Damage | Installation By The Sleep Company Technicians Will Be Provided On Selected Pincodes.
- Multiple Adjustments - 2D Adjustable Headrest |Heavy Nylon Chrome Finished 2D Adjustable Arms| The Ergonomically Designed S-Shaped Backrest Can Be Tilted From 90 To 135Degree With A 3 Positions Lock Lever | 2D Adjustable Lumbar Support Can Be Adjusted As Per The Back Support Required.
- Heavy Duty Base Structure - Gas Lift: Class 3 Samhongsa Gas Lift For Seat Height Adjustment | Castors: Chrome Finished Anti-Scratch 60Mm Nylon Wheels For 360-Degree Swivel Movement| Maximum Weight Load Capacity: 150Kg | It Is Best Suited For Offices, Meeting Rooms, Work-From Home Setup, & Living Room.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09Y281GGW |
| Age Range (Description) | Adult |
| Arm Style | with Arm |
| Back Style | Solid Back |
| Best Sellers Rank | #5,219 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #19 in Home Office Desk Chairs |
| Brand | The Sleep Company |
| Chair Backrest Width | 46 Centimetres |
| Colour | Grey |
| Country of Origin | India |
| Fill Material | Foam |
| Finish Type | Chrome Finish |
| Form Factor | Ergonomic |
| Furniture Finish | Black |
| Generic Name | Adjustable |
| Importer | The Sleep Company, Comfort Grid Technologies Pvt Ltd |
| Included Components | 1 Onyx SmartGRID Chair Black & Grey, Warranty Card |
| Indoor/Outdoor Usage | Indoor |
| Is Customisable | No |
| Item Weight | 22 kg |
| Item model number | Onyx |
| Leg Style | wheels |
| Manufacturer | Comfort Grid Technologies Private Limited, Warehouse no. S4, South Park Welspun One Logistics Park, DOB Estate, Bapgaon Sonale Road, Lonad, Bapgaon Village,, Bhiwandi, Maharashtra, 421302, IN, The Sleep Company Mumbai Maharashtra |
| Material | SmartGRID |
| Model Name | Onyx |
| Net Quantity | 1 Count |
| Packer | The Sleep Company Mumbai Maharashtra |
| Pattern | Grey |
| Product Care Instructions | Wipe Clean |
| Product Dimensions | 48D x 62W x 117H Centimeters |
| Reclining Position Count | 1 |
| Recommended Uses For Product | Office |
| Room Type | Living Room |
| Seat Back Interior Height | 57 Centimetres |
| Seat Depth | 48.3 Centimeters |
| Seat Height | 55 Centimetres |
| Seat Length | 52 Centimeters |
| Seat Material Type | SmartGRID |
| Shape | l-shaped |
| Size | High Back |
| Special Feature | Adjustable Lumbar, Ergonomic, Adjustable Headrest, Arm Rest, Scratch Resistant, Swivel |
| Surface Recommendation | Hard Floor |

## Product Details

- **Back Style:** Solid Back
- **Brand:** The Sleep Company
- **Colour:** Grey
- **Frame Material:** Nylon
- **Item Weight:** 22 Kilograms
- **Material:** SmartGRID
- **Product Care Instructions:** Wipe Clean
- **Product Dimensions:** 48D x 62W x 117H Centimeters
- **Size:** High Back
- **Special Feature:** Adjustable Lumbar, Ergonomic, Adjustable Headrest, Arm Rest, Scratch Resistant, Swivel

## Images

![Onyx Orthopedic Office Chair | Patented SmartGRID seat | Adjustable Lumbar Support | Ergonomic Sitting Posture | High Back Chair | Work, Home, Study | Free Installation | Grey - Image 1](https://m.media-amazon.com/images/I/51o4X4+Dg-L.jpg)

## Available Options

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

## Questions & Answers

**Q: what is the chair sitting height from the ground. I have a table which is 3feet. is the chair sitting height enough for 3 feet table?**
A: Yes, the chair sitting height is enough for 3 feet table

**Q: Whats the dimensions between the arm rests? Thats the gap to get into the seat**
A: The gap is 25 inches. Happy & Healthy Sitting

**Q: Does back support gets white spots when sweat gets dried**
A: No...iam using this chair 3 to 4 months...but iam not face that problem

**Q: Are the wheels detachable?**
A: No

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good office chair with Lumbar support
*by A***N on 17 January 2026*

This office chair I snagged online has been a total game-changer for my workday. Seriously, it's so comfortable, I actually look forward to sitting down at my desk now. The lumbar support is just right, and the adjustable features let me dial in the perfect position. Plus, it looks pretty sharp in my home office setup. Definitely a solid purchase for anyone spending long hours seated.

### ⭐⭐⭐⭐⭐ Value for money
*by S***A on 9 January 2026*

Product is amazing. Great comfort for the money. Installation was quick and seamless

### ⭐⭐⭐⭐ Comfortable ergonomic chair which is a must if you care for your spine
*by ⚡***⚡ on 29 September 2024*

When you are sitting and working for long hours, if you are not careful you are bound to have medical issues. Until I had one, I continued with one of those traditional fancy chairs. After having cervical and lumbar issue, the diagnosis of which caused a lot, I started with my search for a good ergonomic chair to support my back/spine. I ordered even one for around 5k, but as soon as I opened the box, I raised a return because of poor quality. Post that I was clear that you get what you pay for... 🎁 INSIDE BOX 1x backrest 1x seat 1x locking mechanism 2x handle 1x castor and cover 1x headrest 1x gas lift 2x allen key 6x screws for handle, 3x for backrest, 4x for mechanism, 1x for headrest 2x metal bush for handle 2x plastic bushes for mechanism 1x manual (printed colored booklet, not A4 papers some have received) Dimensions: Seat: Width 480 mm , Depth 480 mm Back (height from top of seat): 510 mm Arm rest: length 240mm x with 70 mm Lumbar adjustment: 35mm Headrest/neckrest adjustment: 80 mm ➕ PROS 1. A chair with quality components and smooth mechanism 2. Be it wheels, rotation of chair, up/down movement its quite smooth 3. Gas lift mechanism is smooth, and provides ample adjustment of height (top of seat cushion from ground, with gas lift at bottom position ~450 mm, and with gas lift at top position ~570 mm) 4. Removable head rest is a plus, since if you are not comfortable with it, you can remove. 5. Backrest is made up of ~8-10 mm cushion (this is a non-mesh version where its just a mesh cloth). Even with this, you its quite breathable and comfortable for long sitting. 6. Overall chair provides good support to your spine, and helps manage cervical and lumbar pain. I am using a 1" cushion as well to increase height of neck to align it perfectly with the head rest for proper neck support. I cant say much about smartgrid, as I have not disassembled any of back rest or seat. 7. Adjustable armrest is a plus to give proper rest to arms and align position as per height of the table. 8. Versatile tilting/reclining back, with adjustable tilt tension. Tension can be loosened to make it tilt with natural tilting movement of our back. ➖ CONS 1. Since I paid quite a lot for this chair, I expected quality across elements, but the castor cover was with unfinished edges, which I had to clear using a blade 2. Better handrests could have been provided. These are a bit flimsy, and loose in the adjustable housing. Moreover, note that its hard plastic and no cushioning on the top. 3. Lumbar support is not rigid and has a lot of flexibility to it (in description its being called as firm, but its far from it). Because of that, you dont get stable lumbar support. ⚙️ USAGE SCENARIOS My height is around 5' 4" and the headrest even at its lowest position, barely aligns with my neck. So anyone with lesser height will find trouble with it, as if your head actually rests on the center of headrest and not on the top, you will soon start having neck pain. Best position will be with its center of curvature aligned to neck, with head resting on top of it to keep spine straight. In such a case, you only have the option to use the chair without neck rest. 🔨 PERFORMANCE Assembly may take anywhere between 15 mins to 60 mins depending on how proficient you are with tools I used power screwdriver for faster assembly, as machine screws are provided which have fine threads, so lots of turns to screw/unscrew 🏆 VERDICT I initially ordered a 5k chair, and the quality was pathetic. This is lives up to mark to provide good quality for the cost and provides sufficient support for long working hours. A few issues are there, but you get a good deal for the price you pay.

## Frequently Bought Together

- The Sleep Company Onyx Orthopedic Office Chair | Patented SmartGRID Technology | Adjustable Lumbar Support for Ergonomic Sitting Posture | High Back Office Chair for Work, Home, Study | Black & Grey
- The Sleep Company SmartGRID Ortho Pro Seat Cushion for Chair | Car Seat Driving Cushion to Reduce Back Pain | 600+ Cooling Air Channels | Sitting Pillow for Office Chair, Car Seat, Home Chair | Black

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**Shop now:** [https://www.desertcart.co.ke/products/441959931-onyx-orthopedic-office-chair-patented-smartgrid-seat-adjustable-lumbar-support](https://www.desertcart.co.ke/products/441959931-onyx-orthopedic-office-chair-patented-smartgrid-seat-adjustable-lumbar-support)

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-02-26*