Alison Barretta

Alison Barretta

Expert mattress tester

Based in Philadelphia, writer and editor Alison Barretta has been sharing buying advice and retail news for over 15 years. Since 2020 she's been helping Tom's Guide expand its robust library of sleep content by researching the latest trends, speaking with renowned experts, and going behind the scenes at Saatva, Casper, Sleep Number, Tempur-Pedic, and 3Z Brands. Alison has reviewed everything from budget mattresses to immersive luxury smart beds that automatically adjust to your every move. When she isn't reviewing mattresses or searching for great deals to save you money, Alison can be found practicing yoga and martial arts, experimenting with recipes, getting too invested in the Philadelphia Flyers, and snoozing with her cat / assistant mattress tester Alex.

Latest articles by Alison Barretta

The Allswell Mattress with no bedding in a clean, light-colored bedroom.

The Allswell mattress review 2026: 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...

Mattresses
The Marriott Innerspring mattress from JW Marriott hotels in a cream bed frame in a room with a pale peach background

What mattress do Marriott hotels use?

By Ruth Jones last updated

This is what makes the Marriott mattress suit so many sleepers, and you can enjoy it in the comfort of your own bedroom

Mattresses
The new Tempur-Adapt mattress in medium on display at the Tempur-Pedic retail store in Warrington, PA

Tempur-Pedic Tempur-Adapt Mattress review: 'Legendary pressure relief' back sleepers will love

By Alison Barretta last updated

The Tempur-Adapt is among the most affordable Tempur-Pedic mattresses available, but who is it right for? Here's what we learned after sleeping on it for three weeks.

Mattresses
The Siena Memory Foam Mattress placed on a white bed frame in our blue testing bedroom

Siena Signature review 2025: A cheap mattress that outperforms many luxury beds

By Ruth Jones last updated

Our in-depth and unfiltered review of the Siena Signature Mattress, including lab testing and expert insight into why this mattress is a dream for back sleepers.

Mattresses

So you got a sunrise alarm clock for Christmas — here’s how to use it to fall asleep faster and wake up full of energy

By Alison Barretta published

I'm a recent sunrise alarm clock convert— my tips for using one to enjoy sounder sleep and easier mornings.

Sleep Tech
A drawing of a woman waking up at night in distress from an old mattress

5 red flags that mean your mattress needs replacing immediately

By Alison Barretta published

If you spot these 5 signs, you should replace your mattress as soon as possible for better sleep

Mattress Care
Zinus Cooling Hybrid Mattress

Zinus mattress sales December 2025: Up to 40% off mattresses in Zinus winter sale

By Ruth Jones, Alison Barretta last updated

Explore our expert guide to this month's Zinus mattress deals and grab additional savings on these affordable beds.

Mattresses
The WinkBeds Plus mattress on a bed frame with a duvet in a brightly lit room

WinkBeds mattress deals for January 2026 Take 30% off luxury beds

By Ruth Jones last updated

With 30% off mattresses and bedding, now is the perfect time to shop WinkBed's mattress sales

Mattresses

The best mattress sales in January 2026: Deals from Helix, Saatva, Dreamcloud and more

By Louis Ramirez last updated

Our roundup of the best mattress sales and deals for January from Saatva, Siena, Bear, Helix, and many more.

Mattresses
Casper Comfy Mattress Topper, featuring a woman resting on her back enjoying said topper on her bed

The best Casper mattress sales for January 2026: up to 25% off mattresses and bundles

By Alison Barretta last updated

Our expert guide to the best savings in this month's Casper sale, including discounts on cooling beds and mattress bundles.

Mattresses
The Bear Elite Hybrid cooling mattress on a bed frame in a bedroom, a Tom's Guide price drop deals graphic in the bottom right corner

Bear mattress sales January 2026: 40% off hybrid and all-foam beds

By Ruth Jones last updated

Enjoy 40% off our top-rated cooling bed during January's Bear mattress sales — our expert analysis.

Mattresses
The DreamCloud Classic Hybrid Mattress against a green and blue background, a Tom's Guide Price Drop deals graphic in the bottom left corner

DreamCloud mattress sales for January 2026: Luxury hybrids at low prices

By Claire Davies last updated

We've combed through this month's DreamCloud mattress sales and highlighted the best deals — browse our expert picks.

Mattresses
A close up of the end of a Nectar Classic Memory Foam Mattress on a bed frame, a Tom's Guide price drop deals graphic (right)

Nectar mattress sales for January 2026: The best deals in the US + UK

By Claire Davies last updated

January's Nectar mattress sale is now live. Here are the best discounts on these popular memory foam and hybrid beds...

Mattresses
A woman in her pyjamas lying on her front on the Tempur-Pedic Tempur-ActiveBreeze smart bed

Tempur-Pedic mattress deals for January 2026: Save up to $500

By Claire Davies last updated

Yes, there's a Tempur-Pedic mattress sale to kick off 2026 — here is our expert guide to the deals.

Mattresses
The Helix Midnight Luxe mattress placed on a white wooden bedframe, photographed in our blue coloured Testing Lab

The best Helix mattress deals for January 2026: Save 27% with our exclusive code

By Claire Davies last updated

Shop this month's Helix mattress sales for 27% off sitewide, including its extensive lineup of hybrids. Here's what we recommend buying...

Mattresses
The Saatva Classic Luxury Innerspring Hybrid mattress photographed in a blue bedroom, with a blue Tom's Guide Price Drop image overlaid on the bottom right hand corner of the image

The best Saatva mattress sales in January 2026: 15% off $950+

By Claire Davies last updated

This month's Saatva mattress sale cuts 15% off orders over $950. Here are the deals our experts recommend...

Mattresses
A bird's eye view of a man and woman lying on a GhostBed Massage Foam Mattress. In the bottom right, a Tom's Guide Price Drop deals graphic

GhostBed mattress sales for January 2026: New Year discounts on cooling beds

By Alison Barretta last updated

GhostBed's December sales have landed. See what the best deals are this month

Mattresses
A Puffy mattress in a modern bedroom with a Tom's Guide Price Drop badge

The best Puffy mattress sales for January 2026: Get $1,350 off and a free upgrade on select beds

By Ruth Jones, Alison Barretta last updated

Get money off top-rated memory Puffy mattress sale includes money off foam and luxury beds, plus free sleep accessories.

Mattresses
Siena mattress

Siena mattress sale and deals for January 2026: Great value beds from just $149

By Frances Daniels last updated

Find up to 60% off budget-friendly Siena mattresses in January's sale from the brand.

Mattresses
The Nolah Natural 11 mattress in warmly lit bedroom with deals badge in top left corner.

Nolah mattress deals and discount codes for January 2026: Don't miss the last days of the 35% off sale

By Louis Ramirez last updated

Mattress prices start from $649 with this month's Nolah 35% discount on hybrid, foam and organic latex beds and more.

Mattresses
A Leesa Sapira Hybrid Mattress in a bedroom, with a Tom's Guide lower price deals graphic (left)

Leesa mattress deals for January 2026: Save 25% for New Year

By Alison Barretta last updated

There's 25% off in Leesa's January mattress sale to mark the New Year.

Mattresses
A collage of images: on the left, the DreamCloud Classic Hybrid Mattress on a bed frame in our Sleep Lab. Top right, mattress testers Ruth Jones and Frances Daniels unbox the Siena Signature Mattress onto a bed frame. Bottom right, tester Nicola Appleton leaps onto the Helix Midnight Luxe mattress

Best mattress in a box 2026: hybrid, all-foam and organic boxed beds, tested by experts

By Claire Davies last updated

The best mattresses in a box offer comfort and support, delivered straight to your door. We've tested boxed beds of every type to find the 9 best for all sleep styles and budgets.

Mattresses
A woman lies in her bed at night, sleeping well. On the floor next to her is the Eight Sleep smart mattress cover Pod. A Tom's Guide Eight Sleep price drop deals graphic (left) representing best eight sleep discounts

Eight Sleep pod and mattress deals for January 2026: Get $150 off the Pod 5 Ultra

By Alison Barretta last updated

Eight Sleep's January 2026 sale is here — get the Pod 5 Ultra for $150 off now.

Sleep Tech
A four-image collage of the best mattresses showing testers sleeping on their side.

These are the 8 best mattresses for side sleepers in 2026 according to the expert testers who slept on them

By Claire Davies last updated

Find cushioning comfort to soothe your shoulders and hips with our guide to the eight best mattress for side sleepers, chosen by our expert reviewers and backed by unbiased test data

Mattresses
Avocado Eco Organic Mattress on a bed with two plants to the right of it

Avocado mattress sales and deals for January 2026: Up to $800 off organic and eco-friendly beds

By Claire Davies last updated

Avocado's January mattress sale is here, with 10% off — including up to $800 off its top mattresses

Mattresses
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