Claire Davies

Claire Davies

Managing Editor of Sleep, Certified Sleep Science Coach

Claire is a Certified Sleep Science Coach and the Managing Editor of Sleep at Tom's Guide. She curates our mattress guides and oversees our rigorous mattress testing procedures. Claire has over 16 years' product review experience and is connected to a wealth of globally renowned sleep experts including mattress designers and buyers, neuroscientists, and doctors of sleep medicine. As the Managing Editor of our Sleep and Mattress Team, Claire is responsible for all mattress and sleep content published on Tom’s Guide and is our expert on Saatva, DreamCloud, and Nectar mattresses. Claire is also certified to advise people on how to choose a mattress that suits their needs and budget, as well as helping them to create a nighttime routine and bedroom environment that helps them sleep better.

Latest articles by Claire Davies

A woman stands next to the Saatva Classic Mattress on a bed frame in a bedroom, pressing her hands into the medium-firm surface to test the pressure relief

The best Saatva mattresses in 2025: Our expert guide

By Claire Davies last updated

The Saatva Classic is our number one mattress. Discover the rest of the line-up with our guide to the best Saatva mattresses, tested and chosen by experts.

Mattresses
Two of our mattress testers sitting on the navy and white Bear Elite Hybrid mattress on wooden bedframe in sleep studio with blue walls, wooden bedside table, plant and black chair.

The best cooling mattress 2025: 6 expert-recommended beds for hot sleepers

By Eve Davies last updated

We've tested all the latest and greatest cooling mattresses and have selected these six as the best options for hot sleepers to buy.

Mattresses
Two members of our sleep team stand either side of a stack of the best memory foam mattresses we've tested, including the Nectar and Siena, balanced on a bed frame

What is the best memory foam mattress of 2025? Top 7 tested by our sleep experts

By Claire Davies last updated

Our guide to the best memory foam mattresses you can buy online, tested and recommended by experts — with full reviews.

Mattresses
Two women sit on the Saatva Classic mattress in a bedroom. they're looking at the mattress trying to decide if this is the right one for their sleep needs

The best luxury mattresses in 2025: 7 expert-tested beds to transform your room into a 5-star suite

By Lauren Jeffries last updated

Our experts have tested 120+ mattresses, but these seven luxury beds deliver the most indulgent hotel-style comfort.

Mattresses
The DreamCloud Classic Mattress on a white bed frame in a modern light blue bedroom.

DreamCloud Classic mattress review 2025: A fantastic mid-range option for most people

By Lauren Jeffries last updated

Side sleepers will love how DreamCloud's best-seller cushions the body, but stomach sleepers should avoid it

Mattresses
The Saatva Classic mattress photographed in our Sleep Product Testing Lab. Image clearly shows the Euro pillow top of the mattress, plus the luxurious gold edging of this luxury innerspring hybrid.

Saatva Classic mattress review: Knock-out comfort and a luxury hotel feel

By Claire Davies last updated

Saatva’s flagship mattress is still the best option for most sleepers in 2025, but there’s one group of people who should give it a major swerve

Mattresses
Image is split into four squares, with each square showing a different aspect of our mattress testing process. In the top left hand corner one of our mattress writers performs an effective sleep space test on the DreamCloud Classic mattress. In the top right hand corner you can see our pressure relief weighted indentation test in process, where we are using a standardized stack of weights to measure how much the mattress indents (how well it contours) and how quickly it recovers (how responsive it is). In the bottom left hand corner another our of mattress testers lies on her side on the Saatva Classic mattress during a pressure relief test, with a digital laser projecting a straight line onto her back so we can assess how well the mattress supports spinal alignment. In the bottom right hand corner, one of our mattress testers lies on a hybrid mattress during a thermal regulation test. In the image you can see we're using a thermal imaging camera to measure how much heat the mattress absorbs and how quickly it dissipates that heat.

How we test mattresses

By Claire Davies published

A complete guide to our new methodology and scoring system

Mattresses
The image shows a white mattress with a navy blue trim placed on a dark blue bed foundation in a white bedroom

WinkBed mattress review: Phenomenal support for those with back pain

By Jennifer Nelson last updated

We reviewed the WinkBed mattress to see if this handcrafted hybrid mattress, with customizable support for those with back pain, is indeed a worthy rival to the top-rated Saatva Classic.

Mattresses
Our mattress tester wearing black silk pyjamas laying on her back on the Birch Elite mattress on wooden bedframe in warm lit bedroom with bedside plant, chair, unit, lamp and checkred rug

Don't ignore the 9 key signs that it’s time to buy a new mattress

By Claire Davies last updated

Is it time to replace your mattress? Here are nine telltale signs you need a new one — and three that you just need a new bed topper

Mattresses
A member of our sleep team lies on her side on the Nolah Original Mattress on a bed frame in a bedroom

What are mattress trials and how do they work?

By Claire Davies last updated

Many mattress brands talk about their sleep trial periods, but what are they and how do they work? We have answers.

Mattresses
The Sheraton hotel mattress with Sheraton bedding including sheets, pillows, and a duvet on top

What mattresses do hotels use?

By Alison Barretta last updated

These are the mattresses used by the most celebrated hotels around the world (and yes, you can buy them)

Mattresses
A woman sits cross-legged on a bed with her eyes closed and her fingers held in a meditative position.

The 'perfect, portable stress antidote' — how to use the 4 7 8 breathing method to fall asleep fast

By Claire Davies last updated

Presented by Nectar

The 4 7 8 sleep method involves a simple breathing technique that's surprisingly effective against anxiety, stress and bedtime worries.

Sleep
A man lying with his eyes closed in a canoe on a lake, a visualization used in the Military Sleep Method.

The Military Method promises sleep in 2 minutes — but what is it?

By Claire Davies last updated

How to use the two-minute Military Sleep Method to fall asleep fast and quieten a racing mind before bed.

Sleep
Testers inspect the newly unboxed DreamCloud Classic mattress.

Mattress jargon buster: Our expert glossary explains all the key terms you'll come across while bed shopping

By Claire Davies last updated

Confused by all the technical talk when bed shopping? Our mattress jargon buster explains all the key terms you need to know

Mattresses
A collage of mattresses available in the October Amazon Prime Big Deal Days. Top left the Beautyrest Prime Dream, top right the Zinus 8-inch Green tea Memory Foam, bottom right the Classic Homes Cool Gel Mattress, bottom left the Siena Signature Mattress. In the middle, a Tom's Guide Prime Day deals graphic

October Prime Day mattress deals 2025: Sleep better for less

By Claire Davies last updated

The October Prime Day mattress sales are over, but there's still savings to be had from DreamCloud, Nectar, Sealy, and more.

Mattresses
One of our testers sleeps on her side on the Saatva Classic Mattress while the other sleeps on her back to see how the mattress compares in terms of comfort for these sleeping positions

The best mattress for couples 2025: 8 top-rated options chosen by our sleep experts

By Lauren Jeffries last updated

These eight mattresses offer an undisturbed night's sleep for couples, thanks to their excellent motion isolation, edge support and comfort

Mattresses
Best mattress under $1,000: The image shows Tom's Guide's testers unpacking the Siena Memory Foam Mattress

The best mattress under $1,000 in 2025: Premium sleep without the steep price tag

By Frances Daniels last updated

You may have a queen-size bed but you don't have to spend a royal fortune for a good mattress. These are the best mattresses under $1,000 according to our experts.

Mattresses
A collage of images, showing mattresses being tested. In the top left, two members of the Tom's Guide sleep team sit on the Saatva Classic mattress. Top right, a mattress tester lies on the Helix Midnight Luxe mattress. Bottom left, two women on box a rolled up mattress in a box. Bottom right, two women sit on the DreamCloud Hybrid Mattress. A Tom's Guide price drop deals badge in the center.

Labor Day Mattress Sales: What you need to know

By Claire Davies last updated

The Labor Day sales are an excellent time to save on a mattress — here's our complete guide to the deals and how to get better sleep for less.

Mattresses
Saatva Memorial Day sales main shows the Saatva Classic mattress on a marble background with a blue price drop deals badge overlaid on the bottom left hand corner

Saatva Labor Day sale: Best offers still live

By Claire Davies last updated

You can still save in the Saatva Labor Day mattress sales but act fast to get up to $525 of a luxury handcrafted bed.

Mattresses
Eight Sleep Pod 4 mattress cover with dual temperature control (indicated by one side of the bed red and the other blue) in bedroom with floor to ceiling windows and a phone icon showing sleep report with 100 sleep score

The 5 best smart beds and smart mattresses 2025: cutting-edge tech to help you sleep better

By Eve Davies last updated

Our experts recommend the best smart beds and smart mattresses, featuring advanced tech to help regulate sleep temperature, customize your sleep set up and track your health metrics

Mattresses
The DreamCloud Luxury Hybrid mattress placed on a rattan bed frame in our Sleep Lab and photographed during our testing phase

The best queen mattress 2025: 6 top picks from our expert bed testers

By Claire Davies last updated

After years of mattress testing expertise, our panel of diverse sleepers choose the best queen mattresses of the year, suitable for every kind of sleeper

Mattresses
The Tom's Guide Sleep Editor jumping onto a mattress that's on sale for Labor Day

I'm a mattress sales veteran — these are the 25+ best extended Labor Day deals still live this morning

By Claire Davies last updated

I'm tracking the Labor Day sleep and mattress sales — these are the best 25+ deals still live today on mattresses, bedding, pillows, sleep tech and more

Mattresses
Image shows the Saatva Classic luxury innerspring hybrid mattress on a dark blue background with gold accents, with a light blue Tom's Guide price drop sales badge overlaid in the bottom left hand corner

I'm a sleep coach — the mattress I trust to help most people sleep better is $400 off in Labor Day sales

By Claire Davies published

I've re-tested the Saatva Classic three times and recommend it to nearly all sleepers at $400 off every size in the Labor Day sales

Mattresses
The black and white Cocoon by Sealy Chill mattress placed on a purple bed frame in a bedroom with a white brick wall, two bedside cabinets and a plant

Cocoon by Sealy Chill mattress review: The most affordable cooling mattress around

By Jennifer Nelson last updated

A cooling all-foam mattress, the Cocoon by Sealy Chill won't break the bank. But does it perform? We tested it out.

Mattresses
Water splash atop a white mattress protector

Best mattress protectors 2025: Sleep expert rated picks

By Becky George, Claire Davies last updated

Every mattress needs a mattress protector to keep it clean, dry and allergen-free. Our sleep experts have chosen the best mattress protectors for all sleepers.

Pillows & Bedding
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