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To find the best firm mattress, a panel of staffers here at CNN Underscored spent more than a month sleeping on various mattresses that fall squarely in the “firm” category.

After testing the Nolah Evolution 15 mattress, we recommend it for side sleepers looking for a mid-price option.

The New York Post tested and reviewed the new elite hybrid Bear Mattress. The delivery process, unboxing, comfort, temperature and pressure relief were all taken into account.

Mattress Firm is holding a Memorial Day sale with discounts up to 72% off through May 27. Queen mattresses start as low as $149.99 and the sale includes brands like Tempur-Pedic, Tulo, and Sealy.

Logan Foley, managing editor at SleepFoundation.org: He chooses WinkBed’s Luxury Firm ($1,499 for a queen) for his pick. “The WinkBed is a great hybrid mattress.

Don’t sleep on Mattress Firm’s Memorial Day savings on top brands. The sale runs through June 10, but the deepest discounts and most popular models could sell out quickly.

Our Mattress Smasher 9000 gave the luxury-firm model of the AS6 Black a 4.5 out of 10, which is in the medium range.

As mentioned, I tested the 11 1/2-inch luxury firm queen mattress. I tend to prefer cushiony, hug-like softness but I compromised for my partner, who favors a firm mattress.