How We Test Mattresses

Go behind the scenes of our mattress testing process to learn what we look for when we test each bed.

McKenzie Dillon Writer
McKenzie, a Certified Sleep Science Coach and proclaimed mattress expert, has been writing sleep content in the wellness space for over four years. After earning her certification from the Spencer Institute and dedicating hundreds of hours to sleep research, she has extensive knowledge on the topic and how to improve your quality of rest. Having more experience with lying on mattresses than most, McKenzie has reviewed over 150 beds and a variety of different sleep products including pillows, mattress toppers and sheets. McKenzie has also been a guest on multiple radio shows including WGN Chicago as a sleep expert and contributed sleep advice to over 50 different websites.
Expertise Certified Sleep Science Coach, Certified Stress Management Coach, Bachelor of English.
Nasha Addarich Martínez Managing Editor
Nasha is a Managing Editor for CNET, overseeing our sleep and wellness verticals. She is a nutrition, mental health, fitness and sleep science enthusiast. Her passion for mindful and holistic practices transcends her personal life and profoundly influences her editorial approach, as she weaves evidence-based insights with practical advice to inspire readers to lead healthier, more balanced lives. Throughout her career, she's covered various topics including financial services, technology, travel and wellness.
Expertise Sleep | Mental health | Personal care | Fitness | Nutrition Credentials
  • Sleep Science Coach Certification from The Spencer Institute.
McKenzie Dillon
Nasha Addarich Martínez
11 min read
One of our mattress experts testing a bed and writing on laptop.
Dillon Payne/CNET

We thoroughly review mattresses to give consumers an honest opinion of the beds before they commit to buying. For each mattress review and roundup, we put them through a series of tests to learn the ins and outs of each bed. That way, we can tell you the beds that are worth the money and the ones that are total snores. 

We have a dedicated team of mattress testers who know a lot more about beds than your average Joe. We have tested out many mattresses (over 200 and counting), and have spent hundreds of hours to the job. Below is the criteria we look for when we test beds and insight into what the process is like. And to answer the question you must be asking: yes, we sleep on mattresses for a living.

All reviews and "best list" product rankings share the same commitments to excellence: 

Independence: The products recommended in our reviews, roundups and other stories are independently chosen for review and recommendation. We don't accept compensation for placement on CNET. 

Expertise: Our team of five mattress experts and seven Sleep Science Coaches has years of expertise within the sleep and bedding space.  

Hands-on testing: We personally unbox and hand-test the products we write about, whenever possible. 

Research: If we're unable to test a product ourselves, we make recommendations based on extensive research, customer reviews, brand reputation and expert opinions.  

Value: We take price into account when making product recommendations and aim to find the best products with the most affordable prices. 

How CNET gets the products we review 

Mattress and bedding companies are always introducing new things, whether it be a new mattress model, an updated cooling pillow or a complete branding revamp. Brands keep us in the loop on new product launches and often send us editorial samples for testing prior to release. We keep a majority of the mattresses we receive and store them in our facility so they can be referenced for videos, best lists, comparisons, and so on.

Our editorial team also requests editorial sample products from brands. If we can't get our hands on a product that we want to test, we'll often purchase it. 

Our team of sleep science coaches

Every member of our editorial team is a certified sleep science coach and has dedicated many hours to researching sleep and mattresses. A sleep science certification from the Spencer Institute means that our experts have undergone over 20 hours of learning and studying the intensive science behind sleep and have passed the final exam. This certification qualifies our experts to speak knowledgeably on all things sleep, the relationship between the brain, body and sleep and offer helpful advice to those in need of better quality rest.  

We also have resident mattress experts who have tested and laid on more beds than what's stored at your local mattress firm. Seriously, they've physically had their hands, backs, sides and stomachs on top of over 200 mattresses. With this extensive knowledge of beds, they're able to offer insights on highlights, pros and cons and select best mattress picks that are actually worth the money. 

Meet our mattress experts

Dillon Payne

portrait dillon payne
Dillon Paune

Dillon Payne is a director of video production for CNET and also a mattress tester within the Reno-based sleep team. He received his bachelor's degree in journalism with a concentration in broadcast journalism from California Polytechnic State University, San Luis Obispo. He is a Certified Sleep Science Coach from the Spencer Institute and has tested well over 250 beds since 2017. He currently sleeps on a Helix Sleep mattress but his favorite mattress to sleep on is DreamCloud's first 2018 mattress model which he keeps in his guest room.

Sleeper type: Combo Sleeper (primarily back and right side)

Favorite fact about sleep: There are four different sleep chronotypes; bear, lion, wolf and dolphin. Most individuals fall into the bear chronotype which wakes up around 7 a.m. and goes to sleep around 11 p.m..

Current mattress he's sleeping on: King-size Helix Moonlight Luxe with an active cooling cover.

Owen Poole


Owen is a Senior Video Producer for CNET and one of the Reno-based mattress experts. He is a Certified Sleep Science Coach from the Spencer institute and has been testing beds for over six years and has tested roughly 250 mattresses from dozens of different brands. 

Sleeper type: Combo Sleeper (mostly left side, some back)

Favorite fact about sleep: Sharks have to continuously move in order to breathe so they don't really sleep in the way we humans do but they find ways to rest while moving. 

Current mattress he's sleeping on: Tempur-Pedic Pro Breeze (medium)

JD Christison

James christison portrait
James Christison

JD is an online mattress reviewer and has tested hundreds of beds over the last six years. He is a Certified Sleep Science Coach from the Spencer institute, and mainly conducts mattress reviews. While he tests all types of mattresses, he mainly prefers sleeping on pillow top beds.

Sleeper type: Combo Sleeper

Favorite fact about sleep: REM Sleep stands for Rapid Eye Movement Sleep. It's the deepest state of sleep your body goes through, lasting only 1 to 2 hours on a nightly basis.

Current mattress he's sleeping on: Intellibed Grand Matrix (now the Purple Rejuvenate Premier)

Caroline Igo

Portrait of Caroline Igo
Caroline Igo

Caroline is a sleep editor based in Charlotte, North Carolina. She holds Sleep Science Coach and Stress Management certificates from the Spencer Institute. She received her bachelor's degree in creative writing from Miami University and won the Carl R. Greer/Andrew D. Hepburn Award for a creative nonfiction essay in 2020. Caroline has been a part of CNET since 2021 covering all things sleep, mattresses, bed accessories and has tested over 25 mattresses. 

Sleeper type: Combo sleeper (primarily side and stomach)

Favorite fact about sleep: Koalas spend 90% of their lives sleeping -- that's 20 to 22 hours each day.

Current mattress she's sleeping on: Casper Select (from Costco)

Taylor Leamey

Portrait of Taylor Leamey
Taylor Leamey

Taylor Leamey is a senior writer for CNET. Since joining the team in 2021, she's written about all things wellness, specializing in sleep. She has spent hundreds of hours studying and researching why we need rest. Not to mention the years she spent studying mental health fundamentals while earning her bachelor's degrees in Psychology and Sociology. She holds a Sleep Science Coach and Stress Management certification from the Spencer Institute.

Sleeper type: Combo sleeper (Primarily stomach and side)

Favorite fact about sleep: When sleep deprived, the amygdala (the brain's emotional processing center) is overactive, and the prefrontal cortex (where rational thought comes from) is suppressed. Basically, not getting enough sleep sabotages your ability to regulate emotions and cope with stress logically. 

Current mattress she's sleeping on: Beautyrest Harmony Lux

How we test mattresses

Mattresses we recommend are tested at our in-house mattress facility. We have two bedroom setups, each furnished with a bed frame, two nightstands and decor, and we unbox the mattresses we're sent as a customer would theirs. 

Our team spends an average of seven hours per mattress as we cycle through our testing process, analyzing metrics such as firmness, feel, and performance. If a mattress has special capabilities and features, such as sleep tracking, a team member will test those in their own home after initial processes are finished. 


A person touching and feeling the top of the firm Saatva Classic mattress

Getting a feel for the Saatva Classic mattress.

Jonathon Gomez/CNET

A mattress' level of support or pressure relief is one of the most important factors to consider when shopping: It means the difference between a good night's sleep and waking up feeling like you've slept on a concrete slab or something too soft that failed to support you. We get a feel for a bed and, using all the mattresses we've tested in the past as a gauge, determine where it falls on the spectrum from soft to firm. 

We rate numerically on a 1 to 10 scale, as well as industry terms such as "medium" and "medium-soft." We also collect multiple opinions on firmness from people with different body types because it's valuable to get different perspectives on this: The heavier you are, the more support you'll want from your mattress. If you're a back or stomach sleeper, you'll especially want a more firm mattress. But lighter individuals might find that a firm mattress is too hard and that a softer mattress is more comfortable, especially side sleepers who are petite. 

All firmness ratings are displayed from the perspective of a weight between 150 and 230 pounds. 

Support vs. pressure relief 

Firm beds are supportive and prevent your back from sagging into the mattress. Instead, you sleep more on top of the bed rather than sinking into the foam. Soft beds, on the other hand, offer more give and contour around your curves. They offer more pressure relief than support. Medium beds offer the best of both worlds; enough pressure relief for side sleepers and ample support for back or stomach sleepers.


Does the mattress feel like memory foam, which remembers our shape as we nestle into the mattress? Is switching positions during the night difficult? Or is it like neutral foam, which responds more quickly to pressure and offers a nice, plush feel? Does the bed feel like latex foam, which is very bouncy and supportive? How about the innersprings, can we feel them poking through the bottom layer? We try to let you know how each bed feels in a descriptive, honest way. We know you can't feel the mattress yourself through the computer screen, so we do our best to give details on feel. 


The inside layers of a Casper mattress exposed on top of a bed frame.

Here's what the Casper Original mattress looks like underneath the cover. Notice it's all-foam construction. 

Jonathon Gomez/CNET

If it's not a luxury bed and we have no plans to donate it, we've been known to cut mattresses open to check and see what's inside. That way, we get a look at the layers and what the foam looks like underneath the cover. Otherwise, we'll study the brand's description of the construction for a good understanding of the different foams and materials used. 

The construction of a mattress also helps determine how supportive it's going to be. Foam beds offer less support than hybrid beds made with a coil support layer. 

Body type

Using construction as an indicator, we try to determine how supportive and durable a bed will be for different body types. Typically, people over 230 pounds require hybrid mattresses, with both foam and coils, because those mattresses are more durable. They also tend to find that beds feel softer than advertised. On the flip side, smaller people in the under-150-pound range tend to find that beds feel firmer. We always try to take these factors into consideration when we're testing mattresses. 

Sleeping positions

A man laying on top of a bare mattress inside of a bedroom.

CNET's Dillon Payne trying out the Casper Wave mattress, testing how accommodating it is for back sleepers

Jonathon Gomez/CNET

We test the mattress by sleeping in every different position: side, back, stomach and switching between positions. If it feels too firm for our side or soft for our back or stomach, we make note of it in our review. 


There are other factors to take into consideration when picking a mattress, and these performance indicators are more objective than features like firmness and feel. Regardless of your size or sleeping position, mattresses typically perform either good, average or poor in these categories. 

Motion isolation

There are a few methods we like to use to test motion isolation. The first is just regular co-sleeping. Our tester will ask their partner to "sleep aggressively," tossing and turning for a while like they can't sleep, to see how much motion the bed absorbs. 

The second is placing a glass full of water near the end of the bed. We roll around, getting as close to the glass as possible, to see if it will tip over. This is a nod to the OG commercial with the woman jumping on the memory foam mattress with the wine glass sitting on top. 

Edge support

beautyrest harmony lux mattress testing edge support

One of our mattress experts testing edge support on the Beautyrest Harmony Lux

Dillon Payne

We sit and lie on the edge of the mattress to see what kind of sensation it gives. Is it supportive or do we feel like we're going to roll off the edge? We'll let you know! Hybrid mattresses tend to be more supportive because they contain both foam and steel coils, rather than all foam. As you could imagine, steel is stronger than foam and offers a bit more support. With that being said, a lot of foam beds these days have really stepped up their edge support game and support better at the edge than foam beds used to. 


Disclaimer: discussing mattress temperatures can be tricky because people sleep in different climates, pajamas and have differing home temps. We pay a lot of attention to materials and personal experience to determine how hot a bed sleeps, but it can also depend on where you live and how warm you keep your home. If you live in Arizona with a broken AC or North Dakota during the winter, there are more external factors at play for you than what we can conclude during testing. 

In the same room, at the same temperature, with the same bedding (cotton sheets or no sheets), we test the temperature of mattresses by seeing how hot we feel. Sometimes we'll break out the temperature radar gun, but we've found that we get the point across better by describing, in detail, how hot we felt while sleeping. 

Be wary of claims from mattress brands that their beds are cool. We've found that more often than not, beds sleep more neutral than cold. There are only a handful of beds that actually live up to the claim of being a cooling mattress

Company policies

Online and bed-in-a-box mattress brands recognize their customers may be hesitant to order a mattress over the internet before testing it, so they offer a range of company policies. Some policies are much more generous than others, and it's something to take into consideration if you get a better sense of security from a long risk-free trial and warranty.

  • The average deal is a 90 to 100-night trial with a 10-year warranty
  • A better deal is a 120-night trial and a 20 to 25-year warranty 
  • The best company policies offer a 365-night trial and a lifetime warranty 


A lot of bed-in-a-box mattresses emit an interesting smell once they are unboxed, kind of like a new car. The foams have been manufactured, compressed and packed in plastic, so you'll notice an odor when you unroll it from its packaging. It's not something to be concerned about, and it should go away in anywhere between a few hours to a few days. But we'll make sure to mention obvious smells in our review, especially if the odor is overwhelming. 

The only way to avoid the off-gassing smell is to purchase an organic and natural mattress made with latex foam and certified organic materials like cotton and wool. 


Nobody likes a squeaky, loud mattress that wakes you up every time you switch positions. So, we also keep a lookout, or rather an ear out, as we flip and flop around the bed we're testing.

Why you can trust CNET reviews

CNET editors, writers and staff value integrity and un-biased coverage. We refuse compensation for placement or positive coverage. We also don't guarantee a best list spot to all brands who send editorial samples. All recommendations are based on our personal experience, from expert mattress testers with a range of different sleeping position and body type perspectives. 

The information contained in this article is for educational and informational purposes only and is not intended as health or medical advice. Always consult a physician or other qualified health provider regarding any questions you may have about a medical condition or health objectives.