When it comes to ultra-firm mattresses, the Plank Firm Luxe mattress by Brooklyn Bedding is often marketed as one of the firmest options available. But does it truly live up to its reputation? To find out, we’ve gathered real user experiences from Reddit, where customers have shared their honest feedback after sleeping on the Plank Firm Luxe for months or even years. From firmness expectations and sagging concerns to adjustment periods and sleep comfort, Reddit users provide valuable insights into what it’s really like to own this mattress. Some praise its stomach-sleeper support, while others struggle with its firmness extremes or durability over time.
This article categorizes user comments into key subtopics, highlighting direct quotes and supplemental explanations to help potential buyers understand whether the Plank Firm Luxe mattress is the right choice for them. Let’s dive into the real experiences—both good and bad—of Plank Firm Luxe owners.
Key Takeaways
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Firmness Expectations: While marketed as ultra-firm, some users find the Plank Firm Luxe softer than expected, causing disappointment.
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Sagging Issues: Premature sagging and body impressions have been reported, even with regular rotation and proper care.
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Edge Support: Weak edge support causes instability near the sides, reducing overall comfort and usability.
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Warranty Challenges: Strict warranty policies, including claims voided by minor stains, have left some customers frustrated.
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Return Difficulties: Users have experienced problems with the return process, including resolving defects and securing refunds.
Listen to our Podcast: Plank Firm Luxe Complaints and Real User Experiences
Sagging & Durability Concerns
“My Plank mattress is sagging on the less firm side. Owned for 2 years or so. Rotated regularly. When I lay in the center there is a noticeable difference. It feels like you are lying on a hill.” -u/k-woodz, question for Plank firm luxe owners
Sagging is a common issue even for firm mattresses, especially hybrid ones, which have foam layers on top of coils. The center sagging suggests uneven wear, which is often mitigated by regular rotation (but not flipping, since it’s flippable with distinct firmness levels) to avoid voiding your warranty. If sagging is over 1 inch, it may qualify for a warranty claim.
Plank Firm Luxe
Plank Firm Luxe
Firmness Expectations & Comfort Adjustments
“The first few nights were….rough. I ended up moving to our guest bed the first night. By a week into it I adjusted and so far I like it!” -u/kylaah27, Brooklyn Bedding Plank Firm Luxe or Aurora Luxe Cooling in Firm
It’s common for firm mattresses to have an adjustment period. Many firm mattresses initially feel too rigid before breaking in and conforming to the body, which is part of a Plank Firm Luxe mattress’ trial period. Users who prefer slightly softer firmness may need a mattress topper or alternative hybrid models.
Sagging vs. Material Softening: How Firm is “Firm”?
“I have heard the term ‘material softening’ and that it isn’t the same as sag. To me, if it’s not flat, it’s sagging, regardless of the terminology.” -u/k-woodz, question for Plank firm Luxe owners
Plank Firm Luxe is designed to be ultra-firm, yet some users report that over time, the mattress softens in certain areas, leading to a perceived sag. While material softening is a normal process, customers expect an extra-firm mattress like Plank to retain its shape longer. Some owners consider filing a warranty claim if sagging becomes too pronounced.
Center Sagging After Two Years of Use
My Plank mattress is sagging on the less firm side. Owned for 2 years or so. Rotated regularly. When I lay in the center there is a noticeable difference. It feels like you are lying on a hill.” -u/k-woodz, question for Plank firm luxe owners
While rotating the mattress helps distribute wear, sagging is a common issue with foam and hybrid mattresses over time. The center sagging effect can indicate that the mattress isn’t holding up as expected, even for users with normal BMI and regular maintenance. If sagging exceeds 1 inch, it may be covered under Brooklyn Bedding’s lifetime warranty.
Extreme Firmness vs. Too Soft: No Middle Ground?
“Too soft on the soft side (hips sunk in so back hurts) and too stiff on the firm side to the point where I felt like my blood wasn’t circulating.” -u/AlllSeelsSunshine, question for Plank firm luxe owners
The Plank Firm Luxe offers two firmness levels (one on each side), but some users find that neither side is ideal. The firmer side may be excessively stiff, leading to circulation issues, while the less firm side may allow too much sinkage, causing back pain. Breaking in the firm side or using a topper are common solutions, but not everyone finds this ideal.
Credits: Plank
Modifications for Extra Comfort: Using a Wool Topper
“I added a 3′ organic wool topper, just to be able to talk about how it feels on the mattress. We have not taken the topper off as it did add a little contouring that very firm mattresses sometimes lack.” – u/batmannorm, question for Plank firm luxe owners
Some users modify their Plank Firm Luxe by adding a mattress topper to provide some contouring without sacrificing support. Wool toppers are a popular choice because they are breathable and provide a natural cushioning effect. Memory foam toppers can also be effective, but they may retain heat. The right topper can make a rigid mattress more adaptable for a wider range of sleepers.
Firmness Expectations: Why Some Users Find It Softer Than Advertised
“Firmness is very subjective when it comes to mattresses… The Plank Firm Luxe rates itself I believe a 9/10 on one side and a 7/10 on the other. It isn’t going to be a 9/10 for both a 150lb person and a 300lb person though” – – u/Encouragedissent, Plank Firm vs Plank Firm Luxe
Firmness perception varies by weight—lighter sleepers may find the mattress too firm, while heavier sleepers may feel that it softens faster than expected. The Plank Firm Luxe mattress’ firmness ratings (9/10 and 7/10) may feel different depending on body weight, pressure distribution, and sleeping position. This is why some users feel it doesn’t meet their expectations for firmness.
Sagging Issues in Under a Year
“I am having the same back problems with this bed. It’s sinking after less than a year.” -u/Weird-Posession845, Plank Firm Mattress, Great product, Horrible Warranty!
Premature sagging is a major concern for firm mattress buyers, as it compromises the support needed for proper spinal alignment. Many foam mattresses are prone to body impressions, especially if they lack high-density materials or durable support layers.
When a mattress sags within a year, it often indicates poor material longevity or inadequate structural reinforcement. For sleepers with back pain, even slight sagging can lead to discomfort and disrupted sleep. Regularly rotating the mattress can help, but in severe cases, warranty claims may be necessary—though some users struggle to get replacements due to strict manufacturer policies on visible sagging depth.
Credits: Plank
Is the Plank Firm Luxe Right for You?
Best For:
- Stomach sleepers needing extra support
- People who prefer very firm mattresses
- Those who can tolerate an adjustment period
Potential Issues:
- Sagging complaints after 1-2 years
- Too firm for side sleepers, yet not firm enough for some heavier users
- Firmness perception varies, with some finding it softer than expected
- May require a mattress topper for comfort
While the Plank Firm Luxe offers a unique flippable design and high firmness, its long-term durability, comfort balance, and firmness perception are key concerns for buyers.
Plank Firm Luxe
Plank Firm Luxe
Final Thoughts
The Plank Firm Luxe mattress has gained a reputation for its ultra-firm support, making it a great choice for stomach sleepers and those who need a firm sleep surface. However, user experiences highlight some drawbacks, including sagging over time, firmness extremes, and an adjustment period that may be challenging for some.
For those wondering how safe the Plank Firm Luxe mattress is, it holds CertiPUR-US certification, ensuring it is free from harmful chemicals and low in VOC emissions. However, firmness perception varies by weight, and some users may find the mattress softer or firmer than expected.
If the mattress doesn’t meet your needs, it’s essential to understand the process when returning the Plank Firm Luxe mattress, as policies may vary. Overall, if you’re seeking an extra-firm option with flippable versatility, this mattress could be a good fit—but consider its long-term durability and comfort trade-offs.
