Herman Miller Cosm Review: You’ll Wish You Bought Cosm Earlier!

by Andrew Smith| Last Updated: March 24, 2022

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Herman Miller Cosm Review

The HM Cosm is a chair designed with the perfect blend of comfort and style. Simplistic yet still modern and classy, its design makes it excellent for both home or work use.

The Cosm features a unique, breathable backrest system that minimizes sweating while giving your back the support that it needs. Moreover, it offers many other benefits too. For example, its height-adjustable base ensures that you have complete control over how high up you want to sit.

Is this chair a good fit for you? In my Herman Miller Cosm Review below, I dissect everything excellent about this chair and what needs to be better.

Delve in!

Table of Contents

Comprehensive Herman Miller Cosm Review: Is the Cosm Good?

If you need a new office chair, then look no further than the Cosm. Its ergonomic design provides excellent posture support, making sure that you remain healthy throughout the day.

Why is the chair a great option? Let’s see.


Why would you spend your time gathering trinkets to put your furniture in place? Time-saving specifications are some of the reasons why the HM Cosm is amongst my best ergonomic chairs.

Since it comes pre-assembled, you can put the installation time into good use on a task or enjoy the newest release of your favorite magazine. Besides, you won’t have to purchase or borrow the hardware to put the chair in place.

Ergonomic Design

The Herman Miller Cosm chair is specially designed to offer superior postural support. This feature helps prevent muscle strain and fatigue during prolonged periods of sitting.

When compared to traditional chairs, this chair offers more stability and better balance. As a result, there is less stress on your body, meaning that you don’t suffer from aches after spending extended amounts of time seated.

Next, you can get options with adjustable armrests, although some are non-adjustable and others have a leaf design.

With a gentle press to the levers on the sides, you can get adjustable versions to lower and raise their armrest position. This way, you can have your chair’s armrests level with your desk and avoid straining your hands.

Herman Miller Cosm Chair, Low Back, Graphite

A challenge with some petite chairs is their constricting nature. When you get the Cosm, you can forget about such struggles.

Aside from being sturdy, the frame is flexible. So, irrespective of your body size, you shouldn’t have a problem sitting in this chair, provided you are within the weight capacity limits.

The Cosm chair also comes with integrated lumbar support, which props your lower spine while you sit. Notably, the chair’s lumbar support has a strategic position to ensure that it doesn’t interfere with your ability to work on your desk.

The only thing I dislike about its lumbar support is the absence of adjustability. Nevertheless, the flexibility of its frame ensures that the chair conforms to your movements to provide you with optimal support.


Did you know that slouching can cause diseases like varicose veins and mouse hand syndrome? With this in mind, consider it a crime if your current office chair lacks reclining properties and you have trouble sitting upright.

The HM Cosm has a flexible backrest. When you get tired sitting upright, lay back and enjoy your book or magazine without risking your back by slouching.

My only regret is the absence of a locking mechanism for this back tilt feature. Therefore, it may feel somewhat of a task to lean back.

Nonetheless, if you want mild tilting capabilities, this is a great line to consider. However, the reclining angle is limited, so this is not a wise choice if reclining is the crucial aspect you are looking for.

Height-Adjustable Base

If you are dangling your feet in the office, you are doing a disservice to your body. Getting your feet to properly touch the ground is as important as your posture and may even influence it.


Have you ever gotten yourself moving forward to get your feet to touch the ground? What happens to your back? You have to get it off your backrest, losing back support and hence the primary reason for having an ergonomic chair.

Luckily, the Cosm chairs allow height adjustability. Therefore, you can set the height to a suitable position that allows you to work without straining.

Is Herman Miller Cosm Good for Your Back?

Herman Miller Cosm Chair, Low Back, Graphite

The Herman Miller Cosm was explicitly designed to provide optimal postural support. Thanks to its innovative technology, you are highly unlikely to experience any pain when sitting in this chair.

Furthermore, the Cosm includes several additional features, such as built-in lumbar support. So whether you spend long hours typing away at your computer or reading books, you’ll always feel relaxed and comfortable.

I don’t understand why the Embody gets more hype than the Cosm when clearly, it is more versatile. Did you know there are three Cosm chairs based on back height? Isn’t that impressive?

There is something to suit all back types and body heights. The line includes the Cosm high back, the Cosm mid back, and the Cosm low back. How are they different? Well, let me show you:

Cosm High Back

This model provides a high degree of comfort for those who are tall and need to feel support across their entire back. Its design makes sure that your upper torso remains upright throughout the day.

One thing to note is that the High Back Cosm chair won’t be high enough to lean back on your neck, which is for a good purpose. Doing so would make you assume a wrong posture for work, which is useless if you want to minimize pains and strain.

Cosm Mid Back

If you’re looking for a mid-level option, then the Cosm Mid Back should do just fine. It features a slightly broader size than the High Back while not sacrificing the adjustable armrests. If you prefer a smaller size, then you’ll appreciate its compact dimensions.

Cosm Low Back

For those who like low backs, the Cosm Low Back is perfect. It boasts a comfortable seating position thanks to its cozy design and material. However, if you find yourself leaning too far forward, you might experience discomfort due to the lack of adequate back support.

Are Herman Miller Cosm Chairs Comfortable?

If you’re looking for comfort, then the Herman Miller Cosm should undoubtedly fit the bill. In fact, it features a mesh design which some may not like but is worth a try.

The last thing you want is to sweat on your chair when your cloth color easily shows off sweat marks. With the HM Cosm, you don’t have to dread waking up because of wet patches. Its breathable design allows for aeration, preventing sweating.

As noted, the Cosm Chairs allow for height adjustability like most other office chairs. Not to mention, changing your height with the Cosm is easy and convenient. Also, the adjustable arms provide excellent support to allow you to type with ease.

When it comes to back support, these chairs are an excellent option. Now, they don’t have a tilt lock mechanism, but the fact that they still have some basic reclining properties is a big bonus for me.

This means you won’t need to worry about damaging your spine while sitting on it.

The tiltable backrest is a plus in a multi-employee office setup. These chairs won’t hurt you when you need to lean to the side to talk to a colleague. The plastic is sturdy yet not harsh, allowing you to go about your business with comfort.

What Other Customers Are Saying

The Herman Miller Cosm chair review shows that most people have been happy with their purchases.

Most customers were satisfied with how quickly they could get their hands on the Cosm after placing their order. Many other users commented about how well constructed the chair was.

Some even went as far as saying that they had never seen anything quite like it before. One thing that all reviewers agreed upon, though, was that it was worth every penny.

What I Like

What I Don’t Like

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Why Is Herman Miller Cosm So Expensive?

Sure, the Herman Miller Cosm comes at quite the price tag. For example, the HM Cosm Low Back starts at about $895, as of press time. On the other hand, you will dish out at least $1,395 to get your hands on the HM Cosm High Back.

The priciest in the line is the High Back and Mid Back options that cost up to about $1,845.

But, “expensive” is relative in this context especially considering alternatives like the Herman Miller Embody with a high starting price.

Hence, we can always look past these prices because the Cosm offers much more to make up for its cost.

Firstly, these chairs come with a 12-year warranty. That is a damn long time to identify any manufacturing defects within them. For this reason, you are sure to get the value for your money and can purchase the chair with confidence.

Secondly, there are various types of models available. You can choose any of them. Besides, each one of these designs offers something unique and special.

Also, the chairs are sturdy and have a superb and responsive design to suit almost anyone. So, if this is what I’m getting for “expensiveness,” I don’t mind a bit.

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Frequently Asked Questions

Are There Herman Miller Cosm Fakes?

There is always the chance that fraudsters would want to utilize great ideas for their gain for any excellent performing product. So, there is a likelihood that there are many Cosm fakes.

Nonetheless, you can guard yourself against getting a finicky imitation. Therefore, check for a label on the seat’s underside, a logo, or medallion linking to Herman Miller.

How Long Do Herman Miller Cosm Chairs Last?

With their warranty lasting up to 12 years, it’s clear that the company has a lot of confidence in the longevity of its products. With this in mind, expect the HM Cosm chairs to last not less than that.

In fact, if you stick to the weight capacity, clean them, and use them appropriately, you can stick with them for 15 or more years and still have a good sitting arrangement.

How Long Is Herman Miller Cosm Shipping?

One thing I appreciate is how fast Herman Miller gets their products to clients. For instance, the Cosm shipping takes at most seven business days after order placement.

Also check:

Top 10 Herman Miller Aeron Alternatives
Herman Miller Embody Review

So, Should You Get the Herman Miller Cosm?

I hope my Herman Miller Cosm Review provided you with whatever you needed. But just to stress for the last time, adding it to your home or office space is a no-brainer.

Not only does it offer exceptional value for money, but it also looks fantastic when placed next to some of the best chairs around.

Plus, it boasts numerous additional advantages such as being incredibly durable, highly comfortable, and featuring a stylish design. Overall, I believe that the Cosm is one of the finest office chairs currently available.

Did you know you also get up to a 50-day money-back guarantee when you purchase this chair, based on your location? In case you don’t like it, you can get a refund and try various superb HM Cosm alternatives.

So, why isn’t this chair in your shopping cart yet?


  • Andrew Smith

    Andrew Smith is the founder of CozySeating, is a father of 2, and an engineer from one of the leading furniture stores in the country. Due to his 10 years of experience, he has proved to be the best person to offer advice to clients regarding different seating furniture based on their needs and performance. Besides, he is a specialist in product reviews and always keeps up with the current trends in the market.

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