Claire Davies (CSSC)

Claire Davies (CSSC)

Managing Editor of Sleep, Certified Sleep Science Coach

As a Certified Sleep Science Coach, Claire is qualified to help people optimize their bedrooms for better sleep, and to help them develop the best sleep routine and habits, and to find the right products for their individual needs. In her role as the Managing Editor of Sleep, Claire oversees all of Tom's Guide's sleep health content, as well as our buying guides covering everything from the best mattresses to the best sunrise alarm clocks. Claire is connected to a wealth of sleep doctors, neuroscientists and charted psychologists, and loves helping readers to track down the right solutions for a comfy night's rest.

Latest articles by Claire Davies (CSSC)

A collage of images, showing mattresses being tested. In the top left, two members of the Tom's Guide sleep team sit on the Helix Midnight Luxe mattress. Top right, a mattress tester places her hands on the Saatva Classic. Bottom left, a mattress tester sits on the Nectar Classic. Bottom right, two women un-box a rolled up mattress in a box.

Best value Labor Day mattress sales: Last chance deals on mattresses, pillows, toppers and more

By Claire Davies (CSSC) Last updated

The Labor Day mattress sales are over. Here's how you can save on the best mattress for your sleep needs instead.

Mattresses
Mattress tester Nicola Appleton looks closer at the Helix Midnight Luxe Mattress in our Sleep Lab

The 7 best king mattresses

By Nicola Appleton Last updated

King-size mattresses are an excellent choice for couples, bed sharers, and those who just like to spread right out. These are the best options for all sleepers and budgets.

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

Saatva Labor Day sale 2026: $400 off five-star hotel-style luxury mattresses

By Claire Davies (CSSC) Last updated

The Saatva Labor Day sale has landed and our semi-exclusive links unlock $400 off all mattresses over $1k — here's the best of the current deals

Mattresses
The Avocado Green Mattress in a brightly-lit bedroom. In the bottom right foreground, there is a Tom's Guide Price Drop deals graphic.

The best Avocado mattress sales in September 2026: Save 20% on organic beds

By Claire Davies (CSSC) Last updated

September's Avocado Green sale contains a 20% discount on its flagship organic mattress, plus deals on toxin-free bedding and toppers

Mattresses
A collage of photos depicting the various stages of our hybrid mattress testing and reviewing process in order to find the best options for people to buy in 2025

We've tested over 80 of the best hybrid mattresses this year — these 9 have a perfect balance of comfort and support

By Claire Davies (CSSC) Last updated

We’ve tested over 80 hybrid mattresses, but our top 9 offer the right balance of comfort and support. And now is a great time to buy because they're all on sale for Labor Day.

Mattresses
The new Tempur-Adapt mattress in medium on display at the Tempur-Pedic retail store in Warrington, PA. A price drop deals badge is seen in the bottom left foreground.

Tempur-Pedic mattress deals for September 2026: Up to 40% off best-selling beds

By Claire Davies (CSSC) Last updated

Tempur-Pedic mattress sales rarely last long so don't miss your chance to save in the Labor Day deals — including up to 40% off mattresses and bed frames.

Mattresses
Saatva Classic Luxury Innerspring mattress on a white wooden bed frame in a blue bedroom

The best mattress sales in September 2026

By Claire Davies (CSSC) Last updated

Our experts have found the best mattress sales from DreamCloud, Saatva, Westin and more to shop today

Mattresses
The DreamCloud Classic Hybrid Mattress on a bed frame in our sleep studio, a Tom's Guide Price Drop deals graphic in the bottom right foreground. A woman in a striped shirt sits on the bed's edge.

DreamCloud mattress sales for September 2026: Save big on boxed beds

By Frances Daniels Last updated

All the best savings in this month's DreamCloud mattress sale, including our favorite bed-in-a-box from just $399. Plus, our expert advice on the brand's Labor Day sales.

Mattresses
Two women sit on the edges of the Nectar Premier Memory Foam Mattress in a modern bedroom.

Nectar mattress sales for September 2026: The top deals this month

By Claire Davies (CSSC) Last updated

Our expert guide to finding the biggest Nectar mattress deals this month, including how to navigate the brand's Labor Day sale

Mattresses
A Saatva Classic mattress on a bed frame in the Tom's Guide Sleep Studio. A blue border saying 'tested' surrounds it. There's a Tom's Guide price drop deals badge in the bottom right corner

Saatva mattress sale September 2026: The biggest discount on our expert's favorite bed

By Claire Davies (CSSC) Last updated

Our guide to this month's Saatva mattress sale, including how to save on our top-rated bed plus a guide to Saatva mattress sale prices.

Mattresses
A collage of images showing our mattress testing process. Left, the Nectar Premier on a bed frame in our sleep studio. Right from top: a thermal cam trained on a person resting on a mattress. Two mattress testers conduction a motion isolation test. A weight being placed on the edge of a mattress

The best memory foam mattress 2026: Tested by our sleep experts

By Claire Davies (CSSC) Last updated

Our expert guide to the best memory foam mattresses you can buy online, based on unbiased testing and data from our Sleep Lab.

Mattresses
Testers Ruth Jones and Nicola Appleton sit on the Helix Midnight Luxe mattress in the sleep studio, discussing the comfort and firmness.

The best Helix mattress deals for September 2026: Save on luxury hybrid beds

By Nicola Appleton Last updated

In the September Helix mattress sale you can save on luxury hybrid beds for every sleep style — our experts help you find the right bed at the right price.

Mattresses
A four-image collage of the best mattresses showing testers sleeping on their side.

We’ve tested every side sleeper mattress you can buy in 2026 — these 8 were the best at cushioning our hips and shoulders for ultra-comfy sleep

By Claire Davies (CSSC) Last updated

After hundreds of hours of testing, these are the 8 mattresses we most recommend for side sleepers — and thanks to Labor Day mattress sales, now is a great time to upgrade.

Mattresses
The image shows a dark haired mattress tested placing her hands on the surface of a cream and gold mattress

7 best luxury mattresses that are actually worth the money, tested and approved by our expert sleep team

By Nicola Appleton Last updated

Our expert team have tested the best luxury mattresses of the year. These are the 7 we recommend for high-quality comfort and support.

Mattresses
A collage of images against a blue background saying 'tested'. On the left, a Saatva Classic mattress in the Tom's Guide Sleep Lab. Top right, a hand pressing into the surface of the Saatva Memory Foam Hybrid. Bottom right, a close up of the foot of the Saatva Latex Hybrid mattress.

The best Saatva mattresses in 2026: Tested and approved by sleep experts

By Claire Davies (CSSC) Last updated

Find the bed of your dreams with our honest guide to the best Saatva mattresses, based on hands-on testing by sleep experts and data-driven results.

Mattresses
This image shows the hands-on edge support testing. The Siena Memory Foam mattress on a bed frame sits in the center of a decorated room. Sleep writer Eve Davies sits on the foot of the Mattress. She's comfortable and shows no signs of sliding off.

The 6 best cheap mattresses under $400 in 2026: Tested, vetted and ranked by our sleep experts

By Frances Daniels Last updated

The best cheap mattresses offer excellent comfort and support for less than $400 for a queen. These are the ones we recommend after sleeping on them at home and testing them in the Tom's Guide Sleep Lab

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 2026: 9 expert-recommended beds for hot sleepers

By Eve Davies Last updated

Banish sweaty nights this summer with one of the 9 best cooling mattresses on the market today, tested and selected by our team of hot sleeping reviewers.

Mattresses
The Casper One mattress at a tester's home. A black-and-white dog sits on the top left corner. A deals badge can be seen in the bottom left foreground.

The best Casper mattress sales for August 2026: up to 40% off mattresses and bundles

By Alison Barretta Last updated

Our expert guide to the best savings in this month's Casper sale, including discounts on cooling beds and mattress bundles.

Mattresses
This split screen image shows a woman in a dark bedroom on the left hand side, with her hands over her face struggling to wake up because she feels so groggy at 6am. On the right hand side a woman is sitting on the edge of her bed at 6am with her arms outstretched, looking out her window at a bright sun with a halo of blue light around it.

Exclusive: I kept waking up exhausted until a NASA scientist shared her $0 lab-tested tip for beating morning grogginess — here’s how it works

By Claire Davies (CSSC) Published

Blue light isn't the enemy, it’s a powerful biological switch—we've just been using it at the wrong time of day

Sleep
A stack of four pillows resting against each other at the head of a bed in a warmly lit room

Best pillows of 2026 for all sleepers

By Becky George Last updated

Our guide to the best pillows for every sleep style, from side sleepers to hot sleepers, expert tested and approved.

Pillows & Bedding
Tempur-Cloud deals

Tempur-Pedic 4th of July sale: Save up to $719 and get a $300 VISA gift card with the Cloud ‘sink-in’ mattress for couples

By Claire Davies Published

The Tempur-Cloud mattress for couples with hip and back pain is on sale from $759 in Tempur-Pedic's 4th of July sale, with a free $300 VISA gift card thrown in.

Mattresses
A collage of mattresses against a red, white and blue background. From top left: the Saatva Classic, the DreamCloud Classic Hybrid, the Helix Midnight Luxe, and the Bear Elite Hybrid

The best 4th of July mattress sales: Last chance deals on mattresses, bedding and sleep tech, chosen by experts

By Claire Davies Last updated

We've tracked the 4th of July mattress sales for five years so we know these deals won't last long. Find last minute savings from Saatva, Bear, Oura and more, chosen by our experts.

Mattresses
A TG sleep tech tester sits in bed wearing the AYO+ Light Therapy Glasses soon after waking to fine-tune her circadian rhythm to reduce morning grogginess (sleep inertia) and boost energy

I tried AYO+ Blue Light Therapy Glasses to help combat my crushing morning fatigue — here's how I feel after 3 months

By Claire Davies (CSSC) Last updated

Better than Luminette? I tested the AYO+ Light Therapy Glasses for 90 days to see if they could cure my afternoon energy slumps and help me wake with more energy

Sleep Tech
On the left, a close up of a boxed mattress in its box in the Tom's Guide Sleep Lab. On the right, mattress testers Nicola and Ruth sit on the Saatva Classic while using a laptop

I’m a mattress expert — 3 beds I’d buy this Prime Day and 3 I’d get in the 4th of July sales

By Ruth Jones Published

Our expert guide to shopping for a mattress in today's Prime Day deals drop versus the 4th of July sales.

Mattresses
A collage of sleep products including mattresses, Oura Ring, Loop earplugs, Luna weighted blanket and Coop pillow

The 30 best Prime Day mattress and bedding deals, from $10 — vetted and tracked by our sleep experts

By Claire Davies Last updated

There are scores of Amazon Prime Day mattress deals live today, but few are actually worth it. We've put our sleep team's five+ years of Prime Day sales knowledge to good use to track down today's absolute best offers

Mattresses
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