
Claire Davies
Claire is a Certified Sleep Science Coach and the Managing Editor of Sleep at Tom's Guide. She oversees our rigorous mattress testing procedures, and our buying guides and mattress rankings. Claire has over 16 years' product review experience and is connected to a wealth of globally renowned sleep experts including mattress designers, neuroscientists, and board-certified sleep doctors. She is also our in-house expert on Saatva, DreamCloud, and Nectar Sleep. Claire is 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. Previously, Claire reported on sleep and wellness tech for T3 and TechRadar.
Latest articles by Claire Davies

5 things I do at night to wake up with energy each day — tips from a sleep coach who used to have insomnia
By Claire Davies published
I stopped chasing the ‘perfect’ night's sleep and started using this science-backed routine to stay asleep and wake up refreshed

Sleep Awareness Week 2026 is here — our guide to the best tips, tech and advice to help you sleep better
By Claire Davies last updated
Presented by Helix Sleep
Our guide to Sleep Awareness Week 2026 features expert interviews, the latest longevity science, and the top-rated tech to help you sleep better.

Doctor reveals common bedroom item that acts as a ‘reservoir’ for the flu virus – plus how often you should wash your bedding when sick
By Claire Davies published
This is exactly how long the flu virus lives on your bed sheets and mattress – plus how often doctors recommend cleaning your bed when you’re sick

A good mattress makes a big difference to how well you sleep — here's why
By Claire Davies last updated
Your mattress has the biggest impact on how comfy (or not) you feel in bed, how quickly you fall asleep, how often you wake up during the night, and how refreshed you feel in the morning

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

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.

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.

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.

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

How to choose a mattress — tips from an expert
By Claire Davies published
Whether you prefer firm, medium or soft support, choosing a mattress doesn’t have to be rocket science — here’s how to do it easily and within budget.

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…

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.

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

Intrusive thoughts keeping you awake? Try this ER doctor ‘brain hack’ to fall asleep quickly
By Claire Davies published
Presented by Helix Sleep
Cognitive shuffling for sleep is Dr Joe’s number one technique when intrusive thoughts strike

Trouble sleeping? 5 things in your bedroom that could be sabotaging your sleep
By Claire Davies last updated
Presented by Helix Sleep
How many of these sleep saboteurs are in your bedroom?

What is a mattress in a box? Plus, the signs they suit your sleep best
By Claire Davies last updated
Boxed mattresses are popular, but are they any good? Our sleep team has tested all the latest mattresses in a box, here's what you need to know…

I’ve been sleep deprived for over two years — my three top tips for easing symptoms
By Claire Davies published
I’m a sleep coach dealing with longterm sleep deprivation. Here’s what I do day-to-day to reduce my symptoms of brain fog, fatigue and irritability…

I’m a sleep coach — my 3 best tips for better sleep this World Mental Health Day
By Claire Davies published
Good quality sleep boosts your mental health. For World Mental Health Day 2024, I’m sharing the three best tips I’ve learned for better sleep.

Sleep Awareness Week 2024 — how to become your 'best slept self' this year
By Claire Davies last updated
Sponsored
All the best tips, mattresses and tech to help you sleep better

I’m a sleep coach — 5 ways your naps are stopping you sleeping through the night
By Claire Davies published
Sponsored
I've been taking a daily nap for over 18 months and still enjoy quality sleep at night. Here's what to do and what to avoid when napping in the day...

Do you really need a mattress or is sleeping on the floor better for you?
By Claire Davies published
Tempted to sleep on the floor and ditch your mattress and pillows? Read this before making a decision.
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