Best Firm Mattresses (2026)

Livvi has been writing and researching sleep-based content for over a year. This, alongside her penchant for napping and extreme tossing and turning, has made her something close to an “expert” in the realm of sleep science, sleep products, and sleep accessories. She’s been consulted for her knowledge of the sleep space by publications such as Authority Magazine, Bustle, and Livingetc. 

Matt is Director of Content at Mattress Clarity, where he aligns testing methodology, product reviews, and overall editorial direction with our audience’s needs and interests. He also tests mattresses and sleep products like pillows, sheets, comforters, and supplements.

He’s a side sleeper, a pillow-top connoisseur, a blanket hog, a believer in equal opportunity bed-sharing with pets, and a dreamer. He combines a deep history in journalism and digital content with experience in performance marketing to help connect our readers, listeners, and viewers with products that will improve their sleep health.

Caitlin has more than 15 years of experience writing about sleep and fitness. After getting an M.A. in journalism from the University of Missouri, she spent nearly a decade as a staff writer and editor at Runner’s World and Bicycling magazines.

Caitlin’s work has focused primarily on health, the outdoors, and parenting—and taken the form of everything from running shoe reviews to long, weepy personal essays about biking across the country. You can find her writing in Outside, Wirecutter, Lonely Planet, Men’s Health, ELLE, Popular Mechanics, Men’s Journal, Sierra Club Magazine, and more.

A side sleeper, lifelong sleepwalker (it’s a problem), and newly hardcore sleepmaxxer, when she’s not editing and writing about health and gear, she likes to ride bikes, run trails, and be under the covers by 9:30 p.m.

After Sosha began writing sleep-related content, she knew she wanted to learn more about this important (yet often elusive!) aspect of human health and well-being. She became a Certified Sleep Science Coach to better understand what goes into getting a good night’s rest—including one’s choice of mattress. Sosha now calls upon this training when she tests and writes about beds and sleep accessories, and when she’s consulted for recommendations by publications such as Livingetc.