The Plank Firm mattress by Brooklyn Bedding is marketed as one of the firmest mattresses available, designed for those who prefer a rigid, supportive sleep surface. However, real user experiences tell a more complex story. While some customers praise its initial firmness and back pain relief, others report unexpected softness, premature sagging, and frustrating warranty disputes.
In this article, we’ve compiled firsthand complaints from Reddit users who have shared their honest experiences with the Plank Firm mattress. From firmness inconsistencies and durability concerns to warranty issues and return difficulties, we break down the most common complaints to help potential buyers make an informed decision. Whether you’re considering purchasing this mattress or dealing with similar frustrations, this guide will give you a clear picture of what to expect.
Key Takeaways
- Despite being marketed as ultra-firm, many users find the Plank Firm mattress unexpectedly soft, leading to dissatisfaction.
- Several customers report premature sagging and body impressions, raising concerns about the mattress’s durability.
- The all-foam construction results in poor edge support, causing sleepers to feel unstable near the sides.
- Strict warranty policies, including voiding claims due to minor stains, have frustrated customers seeking replacements.
- Users have experienced challenges with the return process, citing difficulties in resolving defects and obtaining refunds.
Listen to our Podcast: Plank Firm Complaints and Real User Experiences
Firmness Issues
“It’s the softest mail-order mattress I’ve ever slept on. I figured it must be firmer than those. But I sink right into this thing as a 205lb 6’1″ guy.” -u/capnholt20, Plank Firm is really soft!
Despite being marketed as one of the firmest mattresses available, several users report that the Plank Firm does not meet their expectations. Firmness perception varies based on weight and body type, but for those expecting a rock-hard sleep surface, this mattress may not deliver.
Plank Firm
Plank Firm
Edge Support
“I bought the Plank Firm, seeing how it’s allegedly the firmest mattress around, something like 9/10… but this thing is soft. Nowhere near what I’d call firm. The edges I feel like I’m going to fall off of if I get anywhere near the sides.” –u/Slowhite03, Is there a firm mattress available that’s actually firm?
Many users complain about poor edge support, feeling unstable near the sides. This issue likely stems from the all-foam construction, which lacks the reinforced perimeter found in hybrid or innerspring mattresses. Without proper edge support, sleepers may experience sinking or rolling off, reducing the usable surface area of the bed.
Mattress Durability & Sagging
“In Dec 2023, I started getting bad back pain again. I noticed that the mattress was sagging from the center. There was a clear body imprint. This happened on the softer side of the mattress, not the firm. Firm side is still good.” -u/salman15, Plank Firm Mattress, Great product, Horrible Warranty!
Many foam mattresses tend to develop body impressions over time, particularly if they lack high-density support layers. As sleepers apply pressure to the same spots night after night, the foam gradually compresses, leading to visible indentations and a reduction in overall support.
This issue is more common in lower-density foam beds, where materials break down faster. Rotating the mattress regularly can help distribute wear more evenly, potentially extending its lifespan. However, even with proper maintenance, long-term sagging may still occur, especially for heavier individuals or those who prefer sleeping in the same position each night.
Warranty & Customer Service Complaints
“First, they denied the body imprint and said it’s a ‘loose fabric’ even after I sent them pictures from every possible angle. Then another rep admitted there was a potential problem but refused the claim because of a few stain marks.” –u/salman15, Plank Firm Mattress, Great product, Horrible Warranty!
Many mattress warranties have strict policies that void claims if stains are present, even if the issue is unrelated. This allows manufacturers to deny coverage for defects like sagging or body impressions. While some companies state this policy clearly, others fail to highlight it during purchase, leaving buyers unaware of the risk.
Using a waterproof mattress protector is strongly recommended to avoid voiding the warranty, as even minor sweat stains or accidental spills can jeopardize warranty claims. Customers frustrated with warranty denials often find that their only option is to replace the mattress entirely, leading to unexpected costs and dissatisfaction with customer service policies.
Shipping & Packaging
“Like all bed-in-a-box products, the Plank mattress is compressed under weight and vacuum sealed in a bag, then folded in half and rolled like a Swiss roll and then wrapped in shipping plastic to keep it small before being put into the box.” –u/tjs114, How does Plank ship their mattresses?
Most bed-in-a-box mattresses, including the Plank Firm mattress, are vacuum-sealed, rolled, and compressed to fit into compact packaging for easier shipping. While this method is convenient, it can sometimes lead to issues with expansion. Once unboxed, the mattress may take 24 to 72 hours to fully regain its intended shape and firmness.
However, in some cases, improper storage or prolonged compression can cause the foam layers to remain misshapen, leading to uneven firmness or indentations. If a mattress does not expand correctly, manufacturers may offer a replacement, but some customers report difficulties in proving the issue for warranty claims.
Credits: Plank
Return Process & Refund Issues
“So I’m going to get royally screwed in returning this probably.” –u/Slowhite03, Is there a firm mattress available that’s actually firm?
Many online mattress companies, including Brooklyn Bedding, have return policies that require customers to keep the mattress for a trial period, often 30 to 120 nights, before initiating a return. While this is meant to allow time for adjustment, it can be frustrating for buyers dissatisfied from the start.
Additionally, what you can expect when returning a Plank Firm mattress varies depending on whether the purchase was made directly from the manufacturer or through a third-party retailer. Some users report challenges in coordinating pickups, delays in refunds, or additional fees. Understanding return policies before purchasing is crucial to avoid unexpected complications and ensure a smoother refund process.
Potential Material Issues (Fiberglass Concern)
“I found fibers coming out of it that looked a lot like fiberglass. Brooklyn Bedding told me it’s not fiberglass but hydrated silica fiber. I asked them for a refund and they are picking up my mattress sometime next week.” -u/SumeetK95, Plank Mattress
Many modern mattresses use fire-retardant (FR) materials to meet safety regulations, with hydrated silica being a common alternative to fiberglass. However, some users report concerns about fiber leakage, which can resemble fiberglass in appearance. This raises questions about how safe the Plank Firm mattress is, especially for those sensitive to airborne fibers.
While Brooklyn Bedding states that their mattresses do not contain fiberglass, customers have still raised concerns about possible irritation or exposure. Improper handling, damage to the cover, or general wear and tear could potentially release these fibers.
If consumers notice shedding or irritation, they should contact the manufacturer for clarification. Using a mattress protector and keeping the cover intact can help prevent material exposure.
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 Mattress Still Worth It?
Despite being marketed as one of the firmest mattresses available, user experiences with the Plank Firm mattress are mixed. While some customers appreciate its initial support, many report unexpected softness, premature sagging, and durability issues. Additionally, strict warranty policies and a challenging return process make resolving defects difficult.
For sleepers who need an extremely firm surface, this mattress may not meet expectations, especially for those who experience back pain or require long-term durability. However, for those who prefer a firmer-than-average feel and don’t mind potential drawbacks, it could still be a viable option with proper precautions.
Plank Firm
Plank Firm
Final Thoughts
The Plank Firm mattress by Brooklyn Bedding promises an ultra-firm sleep experience, but real user feedback reveals several potential drawbacks. While some buyers initially enjoy its firmness and support, many others report unexpected softness, sagging within a year, and poor edge support. These issues can be especially problematic for those seeking relief from back pain or needing a truly firm sleeping surface.
Additionally, warranty claims and return processes seem to be a significant pain point, with strict policies preventing many customers from getting replacements or refunds. Stains, even minor ones, can void warranties, leaving buyers frustrated and out of pocket. Concerns about material durability, fiber leakage, and expansion issues further add to the uncertainty.
Ultimately, whether the Plank Firm mattress is worth it depends on individual preferences and risk tolerance. Those seeking a firm mattress should carefully review the return policy, use a mattress protector, and consider other ultra-firm alternatives if long-term durability is a priority.
