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)

Bear Elite Hybrid mattress on rattan bedframe in sleep studio with blue wall with round wooden bedside table with sunrise alarm clock and mug on top

The best mattress sales in August 2026

By Claire Davies (CSSC) Last updated

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

Mattresses
A woman sits on the edge of the Nectar Premier Memory Foam Mattress in a modern bedroom.

Nectar mattress sales for August 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 price drops on top-rated memory foam and hybrid mattresses

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 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
Simba Simbatex Cool Mattress on a wooden bed frame in a beige bedroom on a sunny day

Selling fast! Simba’s cheapest cooling mattress drops to £261 in huge Prime Day sale

By Claire Davies Published

This is the first big price drop for the Simba Simbatex Cool Mattress and it's exclusive to Amazon for Prime Day 2026. Here's why it's excellent value at £299 for a double...

Mattresses
Pink, blue and white bedding being on a clothesline outside on a bright sunny day

'Sun washing' pillows and bedding in a heatwave won't kill dust mites and fungi — this exact temperature will, infection expert says

By Claire Davies (CSSC) Published

Hanging your pillows, comforter and sheets out might freshen them up, but a top infection prevention expert warns that the viral UV sanitizing trend is just an illusion.

Pillows & Bedding
A collage of the mattress testing process: top left, a tester lying on the Saatva Zenhaven. Top right, testers on the Birch Luxe mattress. Top right, a close up of a hand on the PlushBeds Botanical Bliss Mattress. Bottom left, the Birch Luxe mattress in our Sleep Lab.

We've tested every kind of organic mattress you can buy in 2026 — these are the 5 best for non-toxic sleep

By Claire Davies Last updated

Our expert testers have found the eco-friendly beds that support your sleep and the environment — with options for every sleep need.

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
King size Westin Heavenly Bed on location at Westin New York at Times Square

What mattresses do hotels use?

By Alison Barretta Last updated

Want to recreate hotel luxury in the comfort of your own home? These are the mattresses and bedding top hotels around the world use, plus their affordable alternatives

Mattresses
A well-rested woman with dark hair piled up in a messy bun sits on the edge of her bed and stretches her arms up while facing a sunny window early in the morning

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
The image shows a dark-haired woman lying in bed with an eye mask pulled up over one eye, holding a phone in front of her face. An image of a round and glowing sunrise alarm clock is inset in the top right hand corner.

I’m a sleep science coach — this 15-minute bedtime trick is my secret to surviving the clocks going forward

By Claire Davies Last updated

Like you, I dread the clocks going forward, but this easy to use rule (and three key gadgets) helps me feel like much less of a zombie after losing an hour's sleep.

Sleep
The Simba Simbatex Cool Mattress, pictured here in a neutral-coloured bedroom and placed on a simple wooden bedframe, launched today at Amazon and is exclusive to the online retailer, with prices from £349 and a choice of five sizes to pick from

Simba launches new cooling mattress at Amazon ahead of another summer of gruelling heatwaves

By Claire Davies Published

Ooh, a new Simba cooling mattress has launched in time for summer

Mattresses
A woman dressed in a blue night shirt sleeps peacefully on her partner's chest, as he sleeps with his head on a stone colored bed pillow. In the top left hand corner is a blue Tom's Guide Sleep Awareness Week 2026 logo.

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.

Sleep
A woman sleeping soundly in bed under a white duvet, as early morning sun shines through the curtains behind her.

4 surprising ways a snowstorm can ruin your sleep — and how to fix it

By Claire Davies Published

From taking ages to fall asleep to waking up repeatedly during the night, cold weather can spell trouble for your sleep. Here’s what you need to know…

Sleep
Mattress tester Becky George sits on the middle of the Emma Hybrid Airgrid mattress on a bed frame in our sleep studio, testing the edge support and comfort of the mattress

The 5 best mattresses for better sleep in 2026

By Claire Davies Last updated

Editor's Choice

Make 2026 the year you take your sleep seriously. Browse our guide to the 5 best mattresses for your needs and budget, based on our in-depth testing and hands-on experience.

Mattresses
A Simba mattress bundle with a Tom's Guide 'Act Fast' badge

Simba mattress sales and deals for February 2026: Save up to £840 with the best sale since Black Friday

By Becks Shepherd Last updated

Don't miss out on Simba's New Year sale — up to 30% off and savings up to £840 in a sale that matches Black Friday discounts!

Mattresses
Eight Sleep Pod 4 mattress cover with dual temperature control (indicated by one side of the bed red and the other blue) in bedroom with floor to ceiling windows and a phone icon showing sleep report with 100 sleep score

The 5 best smart beds and smart mattresses 2026: Top picks from a sleep tech reviewer

By Eve Davies Last updated

Our sleep tech experts recommend the best smart beds and smart mattresses to regulate your temperature, customize your bed and track your health

Mattresses
The Emma Divan Bed with a mattress and bedding made up in a yellow painted bright room

The best beds and bed frames in 2026: Top 5 picks tested by experts

By Claire Davies Last updated

After our expert team put the best beds and bed frames of 2026 to the test, these are the 5 we recommend for all sleep styles and budgets

Mattresses
Nectar Duvet draped on top of the bed

Best duvets 2026

By Claire Davies Last updated

Here's our ultimate guide to the best duvets in the market for every season, sleeping style and budget, selected by sleep experts.

Home
A woman with long dark hair blows her nose in bed because she is sick

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

2 Comments
Sleep
Eve Premium Hybrid Mattress

The best Black Friday mattress deals of 2025: Our top sales picks for every budget

By Claire Davies Last updated

Black Friday might be finished but there are still Cyber Monday deals to be had, and we've picked out the best savings

Mattresses
This image shows two of our sleep team testing mattress in the Sleep Lab, debating when's the best time to shop. On the left, Nicola Appleton sits on a Helix Midnight Luxe mattress. On the right, Ruth Jones sits on a Saatva Classic mattress, a laptop open in her lab as she checks for sales. In the top right corner is a Cyber Monday vs Black Friday mattress deals graphic

Cyber Monday vs Black Friday mattress deals: when is the best time to buy a mattress?

By Claire Davies Last updated

Are the Black Friday mattress deals the best time to buy a mattress or do bigger sales arrive on Cyber Monday? We’ve analyzed past sales to find out.

Mattresses
Tom's Guide Sleep Concierge team image shows two of our mattress testers sitting on a luxury hybrid mattress in our sleep product testing lab

Our Cyber Monday Sleep Concierge service is live — get personalized mattress and pillow recommendations direct from our experts

By Claire Davies Published

Need a new mattress, pillow or bedding set but unsure where to start? Answer these six simple questions and our Sleep Concierge team will send you recommendations unique to you

Mattresses
Two women sitting on the Siena Signature Memory Foam mattress with a Tom's Guide Black Friday Mattress Deals badge overlaid

3 reasons to buy a mattress in this weekend's sales — don't wait for Black Friday

By Nicola Appleton Last updated

Wait for Black Friday and you'll pay the same price for your mattress and risk having to wait longer for it if it isn't out of stock. We’re calling it — now's the time to buy.

Mattresses
Nectar mattress review: The Nectar Mattress placed on a light wooden bed frame with an orange metal suitcase at the end

Nectar Mattress review: Supportive memory foam comfort for low budgets

By Claire Davies Last updated

Recommended

The Nectar Memory Foam Mattress promises body-hugging, cooling comfort, but does it deliver? We tested it for three months to find out...

Mattresses
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