Plank Firm Mattress Review

Plank Product shot 1

Plank Firm Mattress Review

✔️Last updated: July 2023

✔️Customer Rating: 4.8/5
✔️Mattress Advisor Score: 8.9/10
✔️Type: Polyfoam
✔️Firmness: Firm & Extra-Firm
✔️Free Shipping & Returns
✔️120-Night Sleep Trial
✔️10-Year Warranty

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Overview: The Plank Firm is a unique option for those who prefer firmer mattresses. This is a flippable mattress, meaning you can sleep on both sides. With a firm side and an ultra-firm side, it’s great for those who want a firm mattress but aren’t sure just how firm they need.  

Who Is the Plank Firm Mattress Best for?

Plank Firm is best for: Plank Firm may not be best for:
  • Back and stomach sleepers
  • Sleepers who love firm beds
  • All body types
  • People with lower back pain
  • Memory foam lovers
  • People who like a soft mattress

Plank Firm Mattress Highlights

Best Firm Mattresses - Mattress Advisor

The Plank Firm by Brooklyn Bedding is a dual-sided all-foam mattress that offers different firmness levels on each side. If the typical firm mattress is never quite firm enough for you, the Plank Firm may be just what you’ve been looking for.

In this review, you’ll see how the Plank Firm performed during our in-house testing along with everything else you should know to decide if the Plank Firm is the right ultra-firm mattress for you.

What Makes The Plank Firm Mattress Stand Out:

  • The Plank Firm is a dual-sided all-foam mattress designed for those who find most firm beds too soft. This flippable mattress offers a firm (7/10) and ultra-firm (9/10) side allowing you to choose which works best for you. The extra-firm side of the mattress is one of the firmest that we’ve come across. 
  • Designed with Brooklyn Bedding’s transitional TitanFlex foam, the Plank Firm offers outstanding support, durability, and pressure relief. This allows for improved blood flow and better support for your lower back so you can rest peacefully all night long.
  • The quilted top and bottom layers are uniquely stitched to provide the most firmness and least loft.
  • An optional cooling panel offers temperature-regulating phase-change material for an incredibly cool night’s sleep. 
  • It’s one of our top-rated best firm mattresses!

The Plank Firm’s Performance in Our Lab Test

Here you can see how the Plank Firm mattress scored in each of our tests. You can learn more about our review process here.

Mattress Advisor Test Score (Out of 10)
Shipping 8
Trial Period 9
Return Policy 9
Warranty 9
Set-Up 9.5
Motion Transfer 8
Edge Support 8
Pressure Relief 9
Spine Alignment 8.75
Responsiveness 8.75
Cooling 8
Durability 8.75
Customer Service 9
Social Impact 9
⭐Total Score for the Plank Firm: 8.9/10⭐

Plank Firm Highlights

✅ Pros

  • Pressure Point Relief: The Plank Firm is one of very few extra-firm beds that delivers excellent pressure point relief—although most side sleepers would still do better on a softer mattress
  • Proper Spine Alignment: The Plank Firm is designed for healthy back support, and we confirmed this benefit during our in-house testing. 
  • Easy to Move Around on: This mattress is responsive, which means it’s easy to switch positions and get comfy—great for combination sleepers. 
  • Durable: Thanks to its high-density foam construction, the Plank Firm is more durable than the average all-foam bed.  

❌ Cons

  • Costs more for optimal cooling: While the baseline Plank Firm is cool for an all-foam mattress, hot sleepers should consider the optional cooling panel. However, this costs an extra $250 for the queen-size mattress. 
  • Off-gassing: While we didn’t notice much of an odor when we unboxed our Plank Firm, some reviewers have noted a scent that lasts for up to a couple of days. Don’t worry, this odor will fade, and it’s quite normal for an all-foam mattress that comes compressed in a box

Pressure Relief

When buying a firm mattress, it’s hard to find one that also cushions pressure points. And for side and back sleepers, you need a mattress that removes weight from areas like the lower back, hips, and shoulders. 

We use a pressure mapping film to locate problematic areas of high pressure, which show up as red zones. As you can see from the images below, there was zero red when our sleep tester was on their back or side! For a firm mattress, that level of pressure relief is nearly unheard of. Brooklyn Bedding’s proprietary foam technology does an incredible job of contouring while maintaining firm support

Motion Isolation

One of the most important factors for couples to consider when buying a mattress is how well it stops motion from traveling from one side of the bed to the other. We conduct two tests to see how well a mattress isolates movement. 

In the first, our sleep testers lie next to one another and take turns switching from one position to the next, while the other person sees how much movement they feel. When our sleep subjects tossed and turned on the Plank Firm, the other person could feel it. However, the surface wasn’t too shaky. They gave the Plank Firm an 8 for the first part of our motion transfer test.

Need a mattress that isolates motion for couples? Check out our top picks for the best mattresses for couples.

During the next test, we place a glass of red wine on one side of the bed and have one of our sleep testers move around on the other side. The wine had a little jiggle to it, but nothing too severe, earning it an 8/10 in this test, too.

Spine Alignment

There’s a movement surrounding the benefits of sleeping on hard surfaces. Some people are choosing to sleep on the floor in the hopes of improved posture and spine positioning, potentially reducing back pain and body aches over time. 

The Plank Firm mattress is designed for people who want to reap the benefits of sleeping on a hard surface but without having to sleep directly on the floor. In our spine alignment test, we were impressed by how straight the spines of our sleep testers were. A straight spine while on your side is a healthy spine, and the balanced firmness also cradles the spine’s natural curvature when lying on your back.

How Firm is Plank Firm?

As the name suggests, it one of the firmest mattresses available. Its dual-sided design boasts one firm side and one extra-firm side. The firm side has a firmness level of 7/10 and the firmer side a 9/10.

What Sleeping Position Works Best?

Thanks to the firm feel, it’s a top back sleeper mattress and stomach sleeper mattress for sleepers who prefer a firm bed. It’s also a great mattress for combination sleepers who spend most of their time on their backs or stomachs. They can also enjoy the Plank Firm thanks to its excellent responsiveness.

Firm beds usually aren’t great for side sleepers. Their hips and shoulders need to sink in further to cushion their pressure points and keep their spine aligned. That being said, our test proved that side sleepers can get both of these things from Plank Firm; therefore, it could work well for side sleepers who prefer to sleep on the mattress rather than in. If you want to compare it to other options, head over to our best mattress for side sleepers page.

Temperature Regulation

We tested the Plank Firm mattress without the optional cooling panel. Without the cooling panel, it earned an 8/10 for its cooling properties. With the cooling panel, the Plank Firm is a good mattress for hot sleepers. Brooklyn Bedding includes extra cooling properties in the cover of the mattress, making it a cool-to-the-touch bed.

How Much Weight Does It Support?

According to Brooklyn Bedding, all their mattresses are designed to support up to 950 lbs. The Titan series, designed specially for heavy people, adds another 50 lbs of weight capacity for a total of 1,000 lbs. Thanks to its firmness and durable high-density foam, the Plank Firm mattress excels for people of most sizes and body types who want a bed with an incredibly firm feel

What Foundations Are Compatible?

The Plank Firm mattress can be used on most foundations that provide minimal to no flex. This includes box springs, adjustable frames, platform beds, or slatted bed frames. Brooklyn Bedding also offers specially designed foundations.

A Look Inside The Plank Firm Mattress

The Plank Firm is a dual-sided all-foam mattress made from two foam layers and unique quilted tops on both sides.

inside plank
  1. Quilted top layer: A thin quilted top that utilizes continuous stitching for zero loft and a flat, smooth sleeping surface. This is the ultra-firm side of the mattress
  2. TitanFlex foam: Ultra-firm proprietary TitanFlex foam is a latex alternative that delivers excellent firmness, support, and pressure relief
  3. High-density base foam: High-density polyfoam makes up the Plank Firm’s core. It adds durability, motion isolation, and firmness. 
  4. Quilted top layer: A thicker quilted comfort layer with minimal loft for a bit more cushion than the firmer side
  5. Optional cooling panel: A unique phase change material fabric can be added for an extra-cool sleeping surface. This add-on includes a cooling panel for both sides of the mattress.

Plank Firm Mattress Sizes, Dimensions, and Pricing

Size Dimensions Price*
Twin 38” x 75” x 11” $899
Twin XL 38” x 80” x 11” $949
Full 53” x 75” x 11” $999
Queen 60” x 80” x 11” $1,249
King 76” x 80” x 11” $1,499
California King 72” x 84” x 11” $1,499

*Prices do not reflect exclusive offers or discounts. Click below to see the best price for the Plank Firm mattress. For more discounts, visit our list of Brooklyn Bedding Coupons.

Ease of Setup

The Plank Firm mattress took us exactly a minute and a half to unbox. The mattress was not very heavy and had a mild smell (not too much chemical off-gassing). There was a lot of wrapping, but the Plank Firm took its full shape immediately.

Brooklyn Bedding Company

Are you ready to buy a Plank Firm mattress? Here’s what you can expect.

Policy Details
Delivery Ships free and arrives at your door within 15-25 business days
Trial Period 120 nights
Warranty 10 years
Return Policy Free returns
Financing Available through Affirm

Mattress Shipping and Delivery

Brooklyn Bedding mattresses are made to order, which means it can take up to 14 business days of production time and 3-7 business days of transit time* after you order your mattress. This is slightly longer than other mattress companies that already have mattresses ready to ship out. All shipping is free unless you reside in Alaska or Hawaii; then your shipping fee is $125. They also ship mattresses to Canada for a $250 shipping fee.

*With COVID-19, shipping times may vary. Contact Brooklyn Bedding for the current estimated shipping times. 

How Long Is the Sleep Trial?

You have 120 nights to try the Plank Firm mattress in the comfort of your home. You can return the mattress during the 120-night sleep trial for a full refund. But there is one caveat—Brooklyn Bedding asks that you give the mattress a chance for 30 days. It takes time for your body to adjust to a new mattress, so it’s best to try it out for a full month to see if it’s what you’d hoped it would be.

How Long Is the Warranty?

Brooklyn Bedding mattresses come with the industry-standard 10-year warranty. If you have a problem during this time that you believe is a defect in the mattress, contact BB’s customer service team to submit a claim.

How Is Customer Service?

Brooklyn Bedding has exceptional customer service. They’re prompt, polite, and knowledgeable. We’ve used the live chat feature at and have only good things to say.

You can also contact them using your phone or email. Simply call them at 1-888-210-8751 or submit a form for them to reach out to you via email. Their hours are Monday to Friday 7am-7pm MST and Saturday and Sunday 9am-5pm.

Can You Return Plank Firm?

Brooklyn Bedding makes returning a mattress easy. Contact their customer service team after 30 days but before 120 days to initiate a return. They’ll work with you to find a local charity to come to your door and pick up your mattress, so you won’t need to stuff it back into its original box!

Once the donation is complete, be on the lookout for a refund on your original form of payment.

Should You Buy Plank Firm?

The Plank Firm mattress is one of the best all-foam beds for firm mattress lovers. Its double-sided firmness levels allow you to choose between a standard firm and an ultra-firm. And what we love about this firm foam mattress is that it offers greater pressure relief than the vast majority of firm beds out there.

Another great thing about the Plank Firm is that it was built to be supportive and durable. Its high-density foam construction has no set weight limit as it’s designed to support every body size. And with an optional cooling panel, it’s an excellent bed for hot sleepers.

The only people that we would advise against buying the Plank Firm are those who need extra cushion. If you’re a side sleeper, chances are you’re going to experience fewer aches and pains on a medium-firm or softer bed. We recommend the Layla Hybrid or Mend Adapt as a flippable alternative if this is you.

Plank Firm Mattress Comparisons

The Plank Firm vs Other Firm Mattresses

The Plank Firm is one of very few all-foam mattresses that’s designed for those who find most beds too soft. Most firm beds are innerspring beds or hybrid mattresses with thin layers of foam. Because of this, the Plank Firm provides superior pressure relief, perfect for back, stomach, and combination sleepers.

Thanks to its all-foam construction, the Plank Firm is better than the average extra-firm bed for couples. Without innerspring coils, the Plank Firm does a good job at minimizing motion transfer for a bed that’s extra-firm.

The Plank Firm vs Other Brooklyn Bedding Mattresses

Brooklyn Bedding manufactures a wide variety of high-quality foam and hybrid mattresses. Here’s a breakdown of how the Plank Firm compares to each BB mattress model.

  • Plank Firm vs Titan Plus: The Titan Plus is a hybrid mattress designed for plus-size sleepers. It too is a firm bed, with a firmness that falls between the firm and extra-firm sides of the Plank Firm. During our in-house testing, we found the Titan Plus to offer better motion isolation, ease-of-movement, and spine alignment. The Plank Firm earned higher scores in pressure relief and edge support. Read our Titan Plus mattress review.
  • Plank Firm vs Signature: The Signature is a hybrid mattress with three firmness levels: soft, medium, and firm. The firm falls between the firm and extra-firm sides of the Plank Firm. Both beds earned an outstanding 9.1/10 in our testing, although the Plank Firm does do a better job limiting motion transfer. Read our Brooklyn Signature mattress review.
  • Plank Firm vs Sedona:  The Sedona is Brooklyn Bedding’s most luxurious mattress. Its hybrid construction boasts deeply hugging memory foam and responsive innerspring coils. Its medium feel is much softer than the 100% polyfoam Plank Firm. The Sedona’s plush comfort layers are better for side sleepers and people who like a memory foam feel. The Plank Firm is best for people who prefer extra-firm beds. Read our Brooklyn Sedona mattress review.
  • Plank Firm vs Spartan: The Spartan is a luxury hybrid mattress with a feel much different than the all-foam Plank Firm. Innerspring coils deliver a slightly bouncier surface, while thick comfort layers of memory foam and polyfoam offer a balance between softness and support. The Spartan comes in soft, medium, or firm but is only one-sided. The Plank Firm is firmer and has a distinct all-foam feel, with the less firm side slightly softer than the Spartan firm and the extra-firm side firmer. Read our Spartan mattress review.
  • Plank Firm vs Bloom: The Bloom and Plank Firm are vastly different beds. The Bloom is an eco-friendly hybrid mattress with a medium firmness level. Its top layer of cotton and wool is quite plush, while the latex and innerspring support layers balance support and pressure relief. The Plank Firm is much firmer, dual-sided and is made entirely of polyurethane foam. The Bloom is better for the average sleeper and the Plank Firm for anyone who needs extra firmness and support. Read our Bloom Hybrid mattress review.
  • Plank Firm vs Bowery Hybrid: The Bowery Hybrid is softer than the Plank Firm and uses pocketed coils rather than high-density foam for its support. The Bowery does a better job at minimizing motion transfer. Combined with even sturdier edges, and the Bowery is typically a superior bed for couples. The Bowery Hybrid is much less expensive than the dual-sided Plank Firm, but the Plank Firm is more durable. Read our Bowery Hybrid mattress review.
  • Plank Firm vs Aurora: The Aurora is a hybrid bed that comes in multiple firmness options. The plush, medium, and firm Aurora mattresses are each softer than the Plank Firm all-foam mattress. Opt for the Plank Firm if you want extra-firm support and the Aurora for a more balanced feel. Read our Brooklyn Aurora mattress review.

Plank Firm vs. Saatva Classic

Criteria Plank Firm Saatva Classic
Mattress Advisor Score 8.9/10 9/10
Firmness Firm and Extra-Firm (7/10, 9/10) Three Options (3/10, 6/10, 8/10)
Material Polyfoam Hybrid
Who’s It Best For?
  • Stomach sleepers
  • Sleepers who want an extra-firm bed
  • People who prefer a bed-in-a-box
  • Sleepers who want a soft or medium-firm mattress
  • Combination sleepers
  • People who want their mattress delivered uncompressed

The all-foam Plank Firm and the hybrid Saatva Classic both offer great firm options for stomach sleepers. But the Extra-Firm side of the flippable Plank is 9/10 compared with the Saatva Classic’s 8/10 Firm option, which makes it the better choice for those who want an ultra-firm feel. The Plank Firm is also a better choice for sleepers who want a bed-in-a-box. It comes compressed for easy delivery. The Saatva is delivered uncompressed, the way a classic innerspring mattress would be.

Sleepers who prefer a soft or medium-firm feel should stick to the Saatva Classic. It comes in several firmness levels so side and back sleepers looking for pressure relief should find an option that works for them. The springy Saatva is also a better choice for combination sleepers, who will find it very easy to move around on this bed at night.

Check out our full Saatva Classic mattress review.

Plank Firm vs. Titan Plus

Criteria Plank Firm Titan Plus
Mattress Advisor Score 8.9/10 9.2/10
Firmness Firm and Extra-Firm (7/10, 9/10) Firm (8/10)
Material Polyfoam Hybrid
Who’s It Best For?
  • Stomach sleepers
  • People looking for an extra-firm feel
  • Back sleepers
  • Heavy people
  • Hot sleepers
  • Budget shoppers

The Plank Firm and the Titan Plus both have very firm feels that make them great for back and stomach sleepers. The flippable Plank mattress offers both a firm and extra-firm side, so sleepers looking for the firmest feel possible will probably prefer the Plank. Stomach sleepers might also prefer the Plank, as it truly is the firmest mattress we’ve ever tested.

On the other hand, the Titan Plus mattress was designed for heavy body types. So, this ultra-supportive hybrid mattress is a great pick for these sleepers. The Titan Plus is also a good choice for hot sleepers, since its cooling gel-infused top layer helps prevent overheating at night. Finally, the Titan Plus is a little more affordable than the Plank, so budget shoppers might want to opt for this bed.

Check out our full Titan Plus mattress review.

Finding the right mattress can improve not only your nights but also your days.

Compare the Plank Firm to Other Mattresses

Interested to see how the Plank Firm compares to other mattresses?
Click here to check out our comparison tool.

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Plank Firm Mattress FAQs


Do I need to use a Brooklyn Bedding foundation with my new mattress?


No. While their bed frames and foundations are designed for their beds, that does not mean others won’t work well. Just be sure that whatever you use is in good condition and doesn’t allow for much flex.


I spilled something on my new Plank Firm mattress. Can I still return it?


Potentially yes, potentially no. It all depends on if the mattress is in good enough condition to be accepted by a local charity for donation. Damage can void the trial period, as well as the warranty. This is why we recommend that you use a waterproof mattress protector from day one on any new bed.


Is the Plank Firm better than sleeping directly on the floor?


There are many proponents of the ultra-firm sleeping surface. We tend to advise extra-firm mattresses over directly sleeping on the floor for a few reasons. The first is that your joints need a bit of cushion to avoid pressure and pain, which is provided by firm beds. Second, sleeping on the floor puts you at the same level as allergens like dust and pests like spiders or mice. Sleeping on a bed can help you breathe better and sleep more soundly.

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Brooklyn Aurora Luxe

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Similar price point


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Zenhaven Natural Latex

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