
Eve Davies
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

The best sleep trackers to buy now
By Eve Davies Last updated
From lab-grade wearables to headbands that actively improve your sleep, here are the best sleep trackers for every sleep style and budget.

Should you buy the Brooklyn Bedding Copperflex Hybrid or Copperflex Memory Foam Mattress this 4th July?
By Eve Davies Published
You can save up to $519 on the Brooklyn Bedding Copperflex mattress range now, but should you buy the Pro Hybrid or Memory Foam model in 4th July mattress sales?

4 smart cooling mattress deals worth shopping this 4th July — save up to $1,500
By Eve Davies Published
Are smart cooling mattresses worth their price tags? These are the 4 best deals making cool sleep more accessible this 4th July — save up to $1,500

'The ultimate mattress for couples' — Saatva's adjustable firmness bed is $525 off in 4th July sales
By Eve Davies Published
Heading for a sleep divorce? Here's why the Saatva Solaire is a great adjustable firmness bed for couples — and how to save $525 now

Forget Prime Day, here's how to buy the coolest mattress we've ever tested at its lowest possible price
By Eve Davies Published
Hot sleeper approved! Tom's Guide's readers can bag 40% off the best cooling mattress we've tested this year — here's the Prime Day-beating code you need

I test sleep trackers for a living and these are the 4 best Prime Day deals on the Oura Ring, Whoop, Fitbit and more
By Eve Davies Published
I've spent the year finding the most top-rated sleep trackers from Oura, Whoop, and Fitbit. Trust me, these are the Amazon Prime Day deals you don't want to miss...

Don't pay full price for the Oura Ring 5 — the Ring 4 is still the best sleep tracker I've tested and it's 48% off for Prime Day
By Eve Davies Published
Oura Ring 4 vs Oura Ring 5: Two smart rings for sale, but only one worth buying in the Prime Day deals.

6 of the best sunrise alarm clocks to buy now
By Eve Davies Last updated
A sunrise alarm clock can help you sleep better and wake up easier — even in summer. Here are our top recommendations for every budget and sleeper.

Best sleep headphones 2026: Five top-picks chosen by sleep tech experts
By Eve Davies Last updated
If you're after a comfortable pair of headphones to block out noise with soothing sounds while you sleep, these are our sleep tech expert's top picks.

Why does the Apple Watch track wrist temperature while you're sleeping? We ask Dr. Matt Walker
By Eve Davies Published
Three sleep experts, including neuroscientist Dr. Matthew Walker, share insight on what tracking your wrist temperature through the night can reveal about your health.

This is the longevity focused metric in your sleep score that can indicate how well you’re ageing — experts explain why and how to improve yours
By Eve Davies Published
Forget 8 hours: Experts say this sleep habit is the real key to longevity, and your sleep tracker is paying attention to it every night. Here’s how to find, track and improve your score whether you have an Apple Watch, Oura, Garmin or Whoop

Bear's coolest mattress is at an all-time low price right now
By Eve Davies Published
My job involves reviewing cooling mattresses — trust me, you won't find a cooler, better value bed than the Bear Elite Hybrid right now. Here's how to get 40% off...

Fitbit, Beautyrest and more — 5 sleep trackers under $95 in Memorial Day sales
By Eve Davies Published
Track your sleep for less with these '5 under $95' deals at Amazon for Memorial Day

I test cooling mattresses for work — 5 Memorial Day deals I recommend to hot sleepers
By Eve Davies Published
Save up to $1,200 on some of the most effective cooling mattresses we've tested

Apple Watch 10 vs Whoop MG: Which sleep tracker is actually worth your money?
By Eve Davies Published
I tracked my sleep with the Apple Watch 10 and the Whoop MG over a year. Here's the one I'd buy again...

Walmart launches epic $364 king size cooling mattress deal — this won't last until Memorial Day
By Eve Davies Published
Our picky mattress reviewers gave this hybrid bed-in-a-box 4 out of 5 stars, making it an ideal budget option for couples.

From Apple to Garmin: The 5 best sleep tracker deals with up to $100 off in the Memorial Day sales
By Eve Davies Published
I've spent over 3,000 hours testing sleep trackers, from Apple to Garmin and from Whoop to Oura — these are the deals I recommend in this year's Memorial Day sales

Can you rely on this Prxxhri's Oura Ring alternative to track your sleep? Here's my take as a sleep tech reviewer
By Eve Davies Published
I love my Oura Ring but can this $53 alternative in Memorial Day Amazon sales track my sleep just as well without the subscription fee? We dig in...

Oura Ring 4 vs Apple Watch 10: Which is the better sleep tracker?
By Eve Davies Published
I tracked my sleep with the Oura Ring 4 and Apple Watch 10 over a year. I love both but there's only one I'm still wearing — here's my winner

I finally found the perfect latex mattress for hot, restless sleepers like me — and it’s at an all-time low price for Memorial Day
By Eve Davies Published
This luxury latex mattress has kept me cool and supported all month long. Here's why I recommend shopping the Brooklyn Bedding Thermobalance LX Elite this Memorial Day.

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.

Our fave cheap firm mattress drops to $294 for a queen in the Memorial Day sales — and it's a must for back and stomach sleepers
By Eve Davies Published
Comfy, supportive and cool, the Siena Signature punches way above its affordable price point thanks to this new time-limited deal

'A perfect blend of comfort and support' — I reviewed the Brooklyn Bedding Thermobalance LX Elite mattress and had the sleep of my life
By Eve Davies Published
RecommendedThe new Brooklyn Bedding LX Elite promises the dream for hot sleepers. Our mattress testers put it through the paces to see just how breathable, supportive, and durable this latex bed is...

The Saatva Solaire has 50 levels of adjustable firmness but the Eight Sleep is a dream for hot sleepers — here's how to pick between them
By Eve Davies Published
We compare price, design and features of the Saatva Solaire Adjustable Firmness Mattress vs the Eight Sleep Pod 5 to help you decide which smart bed is for you.
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