Karen Freeman

Karen Freeman

Karen is a world traveler, writer, podcaster, teacher, mom, wife, and occasionally a movie extra. She has written numerous reviews at iMore, CNET and TechRadar about home products and technology. For Tom’s Guide, her expertise focuses on mattresses. Karen has slept on and tested a wide range of new mattresses, including models from top brands like Saatva, Brooklyn Bedding, Stearns & Foster and Casper. Her mattress reviews detail how these beds perform in areas like motion isolation, edge support, comfort and lumbar support. Karen also tests specialist bedding, like cooling pillows, to find new solutions for getting a good night’s sleep.

Latest articles by Karen Freeman

The Saatva Contour5 Mattress on a grey upholstered bed frame in a luxurious bedroom

Saatva Contour5 mattress review: Luxury memory foam comfort for all sleepers

By Karen Freeman last updated

We slept on the Saatva Contour5 Mattress to see if this premium memory foam can deliver luxury pressure relief and the cooling it promises.

Mattresses
Stearns & Foster Estate Mattress review image shows a woman with blonde hair lying on top of the mattress reading a book

Stearns & Foster Estate mattress review 2025

By Karen Freeman last updated

The Stearns & Foster Estate is a luxury hybrid mattress, but is it worth the price tag? We tested it for a month to find out.

Mattresses
Dreamfoam Essential mattress

Brooklyn Bedding Dreamfoam Essential mattress review 2025

By Karen Freeman last updated

This budget-friendly memory foam mattress from Brooklyn Bedding is a brilliant basic model, and comes in tons of sizes and thickness options.

Mattresses
Coop EdenCool+ Adjustable Pillow

I tested this cooling pillow for 2 weeks and it's great for hot sleepers

By Karen Freeman published

We tested this cooling, fully adjustable pillow to see if it really does provide a comfortable night's rest for hot sleepers

Pillows & Bedding
Lucid full-size mattress on a bed frame with a padded headboard, near a window

What is a Lucid mattress and should you buy one? I'm a mattress tester — here's what I think

By Karen Freeman published

Lucid mattresses are Amazon bestsellers — but are they worth buying? I'm a mattress testers, here's what I think.

Mattresses
The Zinus Ultra Cooling Green Tea mattress against a dark gray wall and placed on a wooden bed frame

What is a Zinus mattress and should you buy one? I'm a mattress tester — here's what I think

By Karen Freeman published

Zinus mattresses have gained a reputation as offering decent pressure relief at a low price point. Should you buy one? Here's what I think.

Mattresses
A Beautylux Harmony Lux mattress on a wooden bedframe

Beautyrest Harmony Lux mattress review

By Karen Freeman published

The Beautyrest Harmony Lux mattress appeals to both your comfort levels and your eco-conscious sensibilities - but is it worth its premium price tag? After testing it, this is what we think.

Mattresses
Casper Snow mattress review: Image shows the Casper Snow mattress placed on a light grey bed frame in a blue and green bedroom

Casper Snow mattress review 2025

By Karen Freeman published

We slept on a king Casper Snow mattress over the summer to test its cooling prowess, among other things.

Mattresses

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