
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

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.

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.

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.

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

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.

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.
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