Eve Davies

Eve Davies

Sleep Tech Product Tester and Writer

Eve is a sleep tech product tester and writer at Tom's Guide, covering everything from smart beds and sleep trackers, to sleep earbuds and sunrise alarm clocks. Eve is a PPA-accredited journalist with an MA in Magazine Journalism, and has four years’ experience writing features and news. In her role as Sleep Tech Product Tester and Writer for Tom's Guide, Eve is constantly trying out and reviewing the latest sleep products from brands such as Apple, Garmin, Whoop, Hatch, Sleep Number, Eight Sleep, and Oura. A fitness enthusiast who completed the London Marathon earlier this year, Eve loves exploring the relationship between good sleep, overall health, and physical performance, and how great sleep tech can make that relationship even better.

Latest articles by Eve Davies

A close-up shot shows a hand holding a white Ozlo Sleepbud next to its open, circular, silver-grey charging case. The case lid features the Ozlo logo and the word "OZLO." The Sleepbuds have a small, earhook-like design. The background is a white, slightly textured fabric.

Ozlo Sleepbuds review: Block noise with stunning sound for better sleep

By Eve Davies published

Recommended

For sale, a peaceful night's sleep — $274/£234 now. Are the Ozlo Sleepbuds worth it? I tested them to find out

Sleep Tech
US skier Lauren Macuga sat on Saatva bed with a beige upholstered headboard and white pillows

“It’s the strongest I’ve ever been” — how Olympic skier Lauren Macuga is teaming up with Saatva to sleep better and perform her best

By Eve Davies published

We spoke to US alpine skier Lauren Macauga about sleep and recovery as an athlete and how Saatva are helping her with both.

Sleep
Our sleep tech reviewer wearing the silver Oura Ring 4 on right index finger in bed with white sheets in our sleep studio (left). Checking sleep analytics on Oura app on iPhone (top right) and holding a mug in front of purple jumper with silver Oura Ring 4 on index finger (bottom right), with Tom's Guide Black Friday sleep deals logo

I’ve spent the year testing sleep trackers — I’m still wearing the Oura Ring now and it's $100 off this Black Friday

By Eve Davies published

My favorite Black Friday sleep tech deal so far? The latest and greatest silver Oura Ring for under $250

Sleep Tech
A collage of our mattress testers sitting on the Saatva Classic mattress (left), Bear Elite Hybrid mattress (top right) and Siena mattress (bottom right) in sleep studio with plants, blue wall and black chair next to bed

3 mattresses that will help you sleep through the night if you keep waking up because you're too hot — and they're all on sale this Black Friday

By Eve Davies published

Saatva, Siena, Bear: Here's how to get our favorite cooling beds at the best prices of the year ahead of Black Friday.

Mattresses
A bedroom scene featuring an Eight Sleep mattress with a black base and a dual-colored (red and blue) thermal top cover, implying temperature regulation. The mattress is on a gray upholstered bed frame. The room has modern, minimalist decor with large windows offering a view of an outdoor patio area with white furniture. A Tom's Guide Black Friday Mattress Deals logo is overlaid in the bottom right corner.

Are smart cooling and heating mattresses worth it? I test them for a living — 3 things to know before buying

By Eve Davies published

Wondering whether to buy a temperature control smart bed this Black Friday? Here's my opinion after testing the most popular models...

Mattresses
Eight Sleep Pod 4 smart mattress cover with one side blue and one side red on bed with white pillows (left). Chilipad Dock Pro Cooling Bed System on bed in bedroom with wooden panelling (right) with Tom's Guide Black Friday mattress deals logo.

I tested the Eight Sleep Pod 4 vs Chilipad — here's the winner for hot sleepers

By Eve Davies published

I’ve sept on both the Eight Sleep Pod 4 vs Chilipad by Sleepme — there's one I'd recommend to solo sleepers shopping the Black Friday sales.

Mattresses
Eight Sleep Pod 4 smart mattress cover on bed with beige bed base and two white pillows against a wooden panelled wall.

Tom's Guide Sleep Awards 2025: Best Smart Bed

By Eve Davies published

Our Best Smart Bed winner in the Tom's Guide Sleep Awards utilises the best in sleep technology to improve your rest. Find out more...

Sleep Tech
Our sleep tech reviewer in bed with white sheets wearing the silver Oura Ring 4 on index finger (left). Close up of our sleep tech reviewer wearing the Whoop MG band on left wrist checking sleep metrics on iPhone screen (right) with Tom's Guide Black Friday sleep deals badge

Whoop vs Oura: I tested each sleep tracker for two weeks — here's my winner

By Eve Davies published

I tracked my sleep with the Oura Ring 4 and the Whoop MG for two weeks each. Both are excellent but for me, one is better — here's why

Sleep Tech
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.

Tom's Guide Sleep Awards 2025: Best Cooling Mattress

By Eve Davies published

Excelling in our temperature regulation tests, we award the Bear Elite Hybrid as the best cooling mattress we've tested this year. Here's why it's such a great pick for hot sleepers...

Mattresses
A collage of our sleep tech reviewer testing various sleep trackers in our studio. Laying in bed with white sheets wearing the Oura Ring 4 (top left). Apple Watch 10 with purple strap on wrist displaying sleep stages data (top right). All sleep tracker on arm resting on Withing sleep mat (bottom left). Checking sleep data on mobile wearing Garmin sleep tracking armband on right arm (bottom right).

How we test sleep trackers

By Eve Davies published

A guide to how we test, review and rate sleep trackers for our shopping guides and why you can trust our recommendations

Sleep Tech
A college of three sunrise alarm clocks. Lumie Bodyclock Glow on bedside table (left). Dreamegg sunrise alarm clock with plant in background (middle). Hatch Restore 3 on circle wooden table with yellow flowers in pot (right), with Tom's Guide Black Friday sleep deals badge.

I'm a sleep tech tester — 3 reasons why you should invest in a sunrise alarm clock this Black Friday

By Eve Davies published

A sunrise alarm clock is the one sleep gadget (out of dozens) that I can't go without through winter. Here's how it revolutionizes my mornings...

Sleep Tech
Rosy pink Hatch Restore 3 next to book, hair accessories and plant on bedside table in pink room with check wallpaper and green bedding

Tom's Guide Sleep Awards 2025: Best Sunrise Alarm Clock

By Eve Davies published

The Hatch Restore 3 has won our Best Sunrise Alarm Clock award — here's why and how it can transform both your morning and evening routine.

Sleep Tech
An image showing behind the scenes of our temperature regulation tests on the Saatva Classic mattress, with our tester lying on the mattress and our Managing Editor of Sleep, Claire Davies' iPhone attached to our thermal imaging camera to track the heat absorption and heat dissipation capabilities of the Saatva Classic over a period of 30 minutes.

Our thermal tests show this specific type of mattress helps you sleep cooler than any other — here's exactly what to look for

By Eve Davies published

Our new and improved mattress testing data shows hybrid mattresses are the best at keeping you cool at night. Here's how they do it and what hot sleepers should look for when bed shopping.

Mattresses
Hatch Restore 3 sunrise alarm clock

Don't wait for Black Friday — the Hatch sunrise alarm clock just plummeted to it's lowest ever price

By Eve Davies published

The Hatch Restore 3 just dropped back to its lowest ever price. This is the sunrise alarm clock I'd snap up before Black Friday for easier wake-ups.

Sleep Tech
A side by side of our mattress tester wearing black and white pyjamas laying on her front on the Brooklyn Bedding CopperFlex Pro Hybrid mattress (left) and the Brooklyn Bedding Memory Foam mattress (right) with Tom's Guide's blue Black Friday mattress deals logo

Looking for an affordable cooling bed? I've tried two Brooklyn Bedding CopperFlex mattresses, but there's only one I'd buy this Black Friday

By Eve Davies published

I’ve tried both the memory foam and hybrid versions of the Brooklyn Bedding CopperFlex mattress — this is the one I'd recommend to hot sleepers shopping the Black Friday sales.

Mattresses
A collage of the Eight Sleep Pod 5 Ultra smart mattress system with Tom's Guide's Black Friday mattress deals logo

Finally! The Eight Sleep Pod 5 has plummeted to its lowest price yet — save up to $400 before Black Friday

By Eve Davies published

This is the Black Friday deal I've been waiting for — the cooling Eight Sleep Pod 5 smart mattress and smart bedding are at their lowest price yet

Mattresses
Ozlo Sleepbuds in silver circular case on blue and white patterned blanket

These earbuds helped me sleep for over 5 hours on a long haul flight — and they're at their lowest-ever price this weekend

By Eve Davies published

Black Friday sleep deals are ramping up and you can grab these sleep earbuds at their lowest price now

Sleep Tech
The white and gold adjustable Saatva Solaire, our recommended smart bed for seniors, mattress with one side elevated on suede cream bedframe against seaview background and green plant.

50% of seniors struggle to sleep — but Saatva's smart mattress could be the solution with up to $525 off this Black Friday

By Eve Davies published

The Saatva Solaire is an excellent adjustable firmness mattress for seniors struggling to sleep with chronic pain

Mattresses
WinkBed PLUS mattress in a white bedroom

WinkBeds launches new cooling mattress cover for hot sleepers — here's what you should know

By Eve Davies published

Watch out Saatva, WinkBed has new cooling technology coming through

Mattresses
The Dreamegg sunrise alarm clock on wooden table next to plant in black and white patterned pot with Tom's Guide's 'act fast' logo

Hatch who? This sunrise alarm clock is almost as good as the Restore 3 but just $58 for Black Friday

By Eve Davies published

If you're looking for a Hatch dupe, this excellent sunrise alarm clock could be my new favorite this winter.

Sleep Tech
Our mattress tester jumping on the Bear Elite Hybrid mattress on a wooden bedframe with a rattan headboard in our sleep studio with blue walls and a bedside plant

Beat Bear's Black Friday mattress sale — how to unlock the biggest discount of the year on the cooling Elite Hybrid

By Eve Davies published

No need to wait for Black Friday. You can save up to $1,256 on this premium cooling mattress and start getting better sleep now.

Mattresses
A woman jumping on the Helix Midnight Luxe mattress on white bedframe in sleep studio with blue wall, bedside shelving on the left and plants on the right

Helix Black Friday deals 2025: Top mattresses down to their lowest price of the year

By Eve Davies last updated

PSA: Helix's Black Friday sale has just landed! That means our favorite mattress for side sleepers — the Helix Midnight Luxe — is back down to its lowest price of the year.

Mattresses
The image shows an woman smiling as she places her hands on the surface of a white mattress while she crouches next to it

What is Tencel fabric and how does it keep you cool?

By Eve Davies published

Hot sleeper? Here's why you should add Tencel to your checklist when looking for a new mattress and bedding.

Mattresses
A collage of four pictures of mattress materials. Four mattress coils standing up (top left). Layer of individually wrapped coils (top right). White GlacioTex cover (bottom left). Four slabs of mattress foams (bottom right).

What is temperature regulation in a mattress — and why is it important for sleep?

By Eve Davies last updated

Too hot (or too cold) at night? A mattress with good temperature regulation can go a long way in helping you sleep soundly. Here's what we learned during our latest visit to 3Z Brands in Arizona.

Mattresses
A closeup of the Brooklyn Bedding CopperFlex Pro Hybrid Mattress on a bed frame in a bedroom

What is GlacioTex — and how can it be used to help you sleep cooler?

By Eve Davies last updated

Too hot to sleep? A specialist mattress fabric called GlacioTex could be your solution. Here's how it works

Mattresses
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