A mattress reviewer’s favorite firm mattress is almost 50% off right now

Written by Krystin Arneson
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A mattress reviewer’s favorite firm mattress is almost 50% off right now

There are people who like firm mattresses, and then there are people who would prefer to sleep on an actual plank. For the latter, Plank’s mattress-tester-recommended firm mattress is almost 50% off right now.

Some people hate the feeling of being gently supported by their mattress: For them, it’s all about lying on as firm a mattress as possible. That’s where Plank Mattress comes in. The brand has built a whole business around firm mattresses, and right now you can save almost 50% off their leading Firm model. 

Don’t take our word it’s good: Like always, we’ve had an expert back it first. Enter Marten Carlson, lead mattress reviewer at Mattress Clarity.

Plank mattress sale:

Plank by Brooklyn Bedding Firm Mattress, from $1,332 for a queen at Plank Mattress

$1332 Plank Mattress

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Plank by Brooklyn Bedding Firm Mattress, from $1,332 for a queen at Plank Mattress

“The Plank Firm is easily one of the firmest mattresses I have ever reviewed. It’s got two sides, with one side being firm and the other side being extra firm,” said Carlson.

Not many mattresses are double-sided anymore, and this feature means you can either flip it to zoom in on your preferred comfort level. It means you can also flip it to get a little more life out of it, making the price tag on this a little less thanks to the increased nights you’ll be able to snooze soundly on it before the mattress needs replacing. 

“Both sides were way firmer than average, so they each worked well for stomach sleeping. Plus, being flippable, you can really hone in on what firmness is perfect for you,” Carlson told us. 

It’s also got other professional cred: It’s been endorsed by the American Chiropractic Association, which said it can help improve lumbar support and ease back pain. 

Don’t sleep on adding this super-firm mattress to your cart while it’s on sale. Use the code SUMMER25 at checkout to take 25% off whichever size you prefer. Shop the mattress while it’s on sale at PlankMattress.com.

$1,332 for a queen at Plank Mattress

Pros

  • ✓ If you could always use a firmer mattress, this was basically made for you
  • ✓ Great for those who suffer from back pain
  • ✓ Customization lets you dial in a good night’s sleep

Cons

  • ✕ If you don’t love firm, this isn’t the mattress for you

EXPERT SPOTLIGHT

IN CONVERSATION WITH

Marten Carlson

Mattress Tester & Reviewer

Marten Carlson is a sleep expert and lead mattress reviewer at Mattress Clarity, a Pillar4 Media brand. With nearly a decade of experience testing sleep products, he has personally slept on and evaluated more than 500 mattresses, making him one of the industry’s most experienced reviewers. As a certified sleep coach, Marten combines hands-on testing with expert knowledge of sleep health, comfort, and support. His thorough reviews help consumers cut through marketing claims and find products that genuinely improve sleep quality.

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If These Walls Could Talk” operates independently and exercises sole editorial discretion in all content decisions. While certain brands, products, or services referenced may have current or prior relationships with our affiliated marketing agency, such relationships do not influence our editorial content. We disclaim any liability for conflicts of interest, omissions, or outcomes arising from reliance on our content. All information is provided for general informational purposes only and should not be relied upon as professional or individualized advice.

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