
Claire Davies
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

The best firm mattress 2025, approved by sleep experts
By Claire Davies last updated
Time to upgrade your bed to something more supportive and solid? We've slept on and tested the latest firm mattresses to bring you our guide to the very best options.

The Allswell mattress review 2025: hybrid support at a low price
By Alison Barretta last updated
The Allswell mattress promises medium-firm comfort and a cooler sleep, but does it deliver? We slept on it for a month to find out...

Purple Plus mattress review 2025
By Jennifer Nelson last updated
The Purple Plus mattress is a plusher take on Purple’s GelFlex Grid. We slept on it to find out what this unusual memory foam mattress is like.

The best organic mattress 2025: Natural beds for cleaner sleep
By Claire Davies last updated
These 5 non-toxic beds are the best organic mattresses we've slept on this year for pressure relief, support, temperature regulation and more

I’m a sleep coach — 5 cheap bedtime essentials I stock up on every Prime Day to get the best night’s rest
By Claire Davies published
Before I look at anything else in the Prime Day sale I make sure I’ve piled my basket high with these cheap yet brilliant sleep essentials

The best medium-firm mattress 2025: 7 beds tested and approved by sleep experts
By Claire Davies last updated
The best medium-firm mattresses combine firm support with plenty of cushioning for all sleep positions. We've tested plenty of these Goldilocks beds, and here's our top 7

I’m a sleep coach and these 3 mattresses are worth every cent in today's 4th of July sales
By Claire Davies published
Better sleep for less is just a few clicks away thanks to these unbeatable 4th of July mattress deals

I test mattresses for a living — my all-time favorite is now $400 off in 4th of July sales
By Claire Davies published
The Saatva Classic is the comfiest mattress I’ve tested, and this 4th of July discount brings it back to one of its cheapest prices of the year

Coop Sleep Goods Ultra Tech Waterproof Mattress Protector review 2025
By Claire Davies last updated
The Coop Sleep Goods Ultra Tech Waterproof Mattress Protector promises 100% waterproof protection. Here's what we found out after testing it over two weeks...

I take magnesium for better sleep, but can a varied diet deliver the same results? I asked three dieticians
By Claire Davies published
I’m considering ditching my magnesium glycinate supplement after adding more seeds, greens and beans to my diet. Here’s why…

The best pillow-top mattress in 2025: our expert picks for hotel-style comfort at home
By Lauren Jeffries last updated
We've slept on the best pillow top mattresses of the year designed to cushion and support the body — these are our nine favorites

Memorial Day mattress sales: What you need to know
By Claire Davies last updated
Memorial Day is one of the best times of year to buy a mattress for less, with discounts to rival Black Friday from many of our favorite brands.

Saatva Memorial Day mattress sale 2025: Today's best deals
By Ruth Jones last updated
Memorial Day is a great time to buy a Saatva mattress — here are the best deals you can still shop on the highest-scoring mattress we’ve ever tested

I’m a sleep coach — the best mattress I’ve ever tested is $400 off ahead of Memorial Day sales
By Claire Davies published
I recommend the Saatva Classic Luxury Innerspring Hybrid to most people who have trouble sleeping, and at $400 off now is the time to buy it.

‘Melts away tension in my back’ – save up to $775 on Helix's comfiest hotel-style mattress in new flash sale
By Claire Davies published
For today only the Helix Midnight Luxe is up to $775 off, with prices from $729 for the brand’s more affordable mattresses in a box

DreamCloud’s flagship hotel-style mattress drops to $319 in tariff-beating flash sale – why I'd buy it now
By Claire Davies published
With an uncertain summer ahead for mattress prices, this new DreamCloud flash sale is a buy-it-now bargain

3 sleep hygiene tips that got me back on track after endless nights of being unable to sleep
By Claire Davies published
These aren’t quick fixes, but they could help break you out of a sleep rut

Mattress White Glove Delivery: What's included and how it works
By Claire Davies last updated
We explain everything you need to know about mattress White Glove Delivery, including which brands offer it.

What's the best king size mattress in 2025? I’m a mattress tester — these are my top picks
By Frances Daniels last updated
Thinking of sizing up your bed from a queen to a king? These are the best king size mattresses of the year, according to our experts.

When is the best time to buy a mattress?
By Claire Davies last updated
Here's everything you need to know about all the major mattress sales of the year so you can time your purchase for maximum savings.

The best memory foam mattress topper in 2025: Expert picks for all budgets
By Frances Daniels last updated
Our sleep experts have tested the best memory foam mattress toppers of 2025. Here's what we recommend for every sleep style and budget.

5 reasons not to put a mattress on the floor — and 3 reasons why you should
By Claire Davies last updated
Can you put a mattress on the floor? From mold to bed bugs, there are plenty of reasons not to, but some big benefits too.

‘How do I fall asleep quickly?’ The top 3 tips I’ve learned as a sleep coach and ex-insomniac
By Claire Davies published
Presented by Helix Sleep
How I went from struggling to fall asleep to dropping off in ten minutes or less
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