Frances Daniels is a PPA-accredited journalist and Sleep Staff Writer at Tom's Guide with an MA in Magazine Journalism from Cardiff University. Her role includes covering mattress and sleep news and writing sleep product reviews and buyer's guides, including our Best Hybrid Mattress 2025 guide. She is interested in the relationship between sleep and health, interviewing an array of experts to create in-depth articles about topics such as nutrition, sleep disorders, sleep hygiene, and mattress care. She is also our specialist on mattress toppers — producing bed topper reviews and taking care of our Best Mattress Toppers 2025 guide — and leads content relating to fiberglass-free beds for a non-toxic sleep. Outside of Tom's Guide, she has written for Ideal Home and Marie Claire.
Latest articles by Frances Daniels

A board-certified sleep doctor gave me a 1-week schedule to go from 6 to 7 hours sleep a night — here’s what happened to my Oura ring ‘sleep debt’
By Frances Daniels Published
I owed 8 hours and 50 minutes in 'sleep debt', so I asked Dr. Shelby Harris to create a 7-night schedule to help me pay it back. Here's what happened...

I tried 3 free sleep trackers for iPhones and compared them to my gold standard sleep tracker — one seriously impressed me
By Frances Daniels Published
I pitted 3 sleep trackers against my $499 Oura Ring 5 and compared the data. But which one impressed me the most: Sleepwave, Sleep Cycle, or SleepScore?

I tested 5 viral pillow cleaning hacks to see if they work — here’s what happened when I pitted them against 3 gold standard techniques used by specialists and hotels
By Frances Daniels Published
TikTok is full of so-called hacks for cleaning pillows, but how do they compare to the methods that experts and hotels use? This is what I found out...

This is how often (and the exact temp) you need to wash your bed sheets and pillowcases this summer, according to an infection prevention expert
By Frances Daniels Published
Hot weather leaving your bed sheets and pillows damp most nights? According to a hygiene expert, here's how often you should them in summer to prevent a grim mix of sweat, oil, and allergen build-up.

Beyond the sleep score: What is a circadian score and which wearables offer it?
By Frances Daniels Published
Wearables are pushing sleep scores aside for circadian scores, but can monitoring your body clock help you fall asleep faster, deeper and for longer?

Doctor explains why your AC is waking you up at 3 a.m. — and 3 simple ways to fix it
By Frances Daniels Published
Air conditioning is great if you want to keep your bedroom cool in heatwaves and avoid night sweats, but it can also cause 3 a.m. wake ups — Dr. Dale Christensen explains why

Is magnesium or melatonin better for reducing 3 a.m. wake-ups and sleeping through the night? Experts wade in
By Frances Daniels Published
I asked a registered dietician and a sleep doctor if I should swap my magnesium gummies for melatonin to avoid 3 a.m. wake ups. Here's their verdicts...

Apple Watch, Garmin, Oura, Whoop and Fitbit — all the best Prime Day sleep tracker deals in one place, from $86
By Frances Daniels Published
From medical-grade armbands to stylish rings, here are all the US and UK Prime Day deals on the best sleep trackers we've tested —starting at $86 and £57

Prime Day slashes the price of Simba's coolest mattress topper — but it's selling out fast this summer
By Frances Daniels Published
Amazon customers love how the Simba Hybrid Mattress Topper doesn't "get hot in the summer" — and it's 15% off this Prime Day

Skip the spaghetti! 3 foods that cause night sweats in summer — and 2 that fix it
By Frances Daniels Published
Registered dietician Helen Tieu reveals the cooling foods that will keep night sweats at bay, plus the meals that'll make you feel like you're sleeping in a sauna.

The cooling sleep deals that I predict will set out before Prime Day is over — from portable ACs to misting bedside fans
By Frances Daniels Published
Can't sleep thanks to rising nighttime temperatures? These cooling Amazon Prime Day deals will help you fall asleep fast for less

We've vetted this year's Amazon Prime Day mattress sales – these are the 5 best deals online today
By Frances Daniels Last updated
The top deals in Amazon's early Prime Day mattress sales, hand-picked by sleep experts

Skip the Oura Ring 5: The Oura 4 is £140 off in the Prime Day sales and just as good at tracking your sleep
By Frances Daniels Last updated
If sleeping better is your priority, the Oura Ring 4 is the tracker we recommend — now up to £232 off in new Amazon Prime Day deal

A sleep doctor rates the ‘fall asleep fast’ advice I got from 3 big AI tools — here’s how each one scored
By Frances Daniels Last updated
I asked board-certified sleep specialist Dr. Jade Wu to take a look at the 'fall asleep fast' advice I got from 3 popular AI chatbots — here's what they got wrong

This £16 Prime Day ‘cloud-like’ cooling bed topper deal is a summer sleep saviour
By Frances Daniels Published
Amazon customers love the way this bamboo mattress topper makes their beds feel cooler and softer — and a single is now down to £15.99 this Prime Day.

4 sleep experts share how they fall asleep fast and skip waking up at 3 a.m. in hot weather — 4 steps to take tonight
By Frances Daniels Last updated
Scorching night ahead? Sleep specialists share the 5 simple things they do to fall asleep fast and skip 3 a.m. wake-ups during a heatwave — and the 3 habits sabotaging your rest.

'Re-watch your favorite TV show' to fall asleep fast — plus 3 other surprising tips from a sleep researcher
By Frances Daniels Last updated
Tired of meditation and chamomile tea? An insomnia researcher shares the unexpected evening habits that actually help you drift off faster.

Father's Day 2026: Top-rated gifts for dads who need more sleep — from noise-cancelling earbuds to cooling blankets
By Frances Daniels Published
Over a half of dads say they want to spend Father's Day relaxing — so here's how to give him the peace and quiet he's actually looking for.

Trouble falling asleep? Brushing your teeth right before bed could be to blame, expert says
By Frances Daniels Published
It's likely the last step in your nighttime routine, but it could also be why you take longer than 20 minutes to fall asleep at night

World Cup 2026: 9 key products soccer stars need to sleep well and boost recovery after heavy training sessions
By Frances Daniels Published
From cooling pillows to noise cancelling earbuds, we've rounded up the World Cup-worthy sleep kit elite soccer stars need for peak physical performance

4 things an insomnia expert does before bed to fall asleep fast and sleep through the night
By Frances Daniels Published
I asked neuroscientist Dr Lindsay Browning for her nighttime routine — here are the 4 things she does every evening to fall asleep fast and avoid 3 a.m wake ups

I spent 5 nights sleeping on a mattress on the floor — here's what happened to my sleep
By Frances Daniels Published
I ditched my bed frame and put my mattress on the floor to see if it could improve my sleep — here's what happened and how it compares to my Japanese futon

5 habits that can interfere with your Apple Watch's sleep tracking accuracy — here's how to avoid my mistakes
By Frances Daniels Published
I love my Apple Watch for its intuitive design and thorough sleep tracking, but these little-known mistakes were affecting its accuracy — here's how to avoid them

What mattress does the Four Seasons hotel use? Here's where you can buy this 5-star luxury bed, plus how to find alternatives in the Memorial Day sales
By Ruth Jones Last updated
We explore whether the Four Seasons Signature Mattress is actually worth buying in this year's Memorial Day sales — plus the luxury hotel-style deals we're shopping

Can't decide between the DreamCloud Classic and the Nectar Classic? We tested them both — here's how they compare
By Frances Daniels Last updated
We explore the key differences between the DreamCloud Classic and the Nectar Classic mattresses in terms of price, design, comfort, and support.
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