Brooklyn Bedding

Brooklyn Bedding Plank Firm

$749.00 $525.00 Save 30%
+ IN-STORE DISCOUNT
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Size: Twin
GlacioTex Cooling Cover: No

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The Brooklyn Bedding Plank Firm mattress is the firmest all-foam mattress we carry and one of the firmest mattresses available anywhere. It's built for a specific type of sleeper -- one who finds every other mattress too soft, needs a flat and uncompromising surface for spinal alignment, or has been told by a physician to sleep on a firm surface. Its most distinctive feature is a flippable design that offers two different firmness levels in a single mattress: a Firm side for those who want a traditional firm feel, and an Extra-Firm side for those who want essentially zero give.

The optional GlacioTexâ„¢ Cooling Cover is a worthwhile upgrade for hot sleepers who want active PCM cooling added to the open-cell foam base.

Our ratings
Pressure Relief 5 / 10
Cooling 7.5 / 10
Support 7 / 10
Motion Isolation 6.5 / 10
Edge Support 6.5 / 10
Ease of Movement 9 / 10
Technical Specs
Type All-foam (flippable)
Materials Quilted cover with track-and-jump stitching, Supreme Response comfort foam (Firm side), high-density support foam, 6" high-density core foam base
Weight 100 lbs (queen)
Height 10"
Trial Period & Returns

Sleep on it for up to 120 nights. If it's not the one, we'll arrange a hassle-free pickup for a $99 return fee. A 30-night break-in period is required before initiating a return. See full return policy details.
Size: Twin
GlacioTex Cooling Cover: No

MEET THE PLANK FIRM MATTRESS

Firmness, Construction, and Performance

At The Drift, we take mattresses (and your sleep) seriously. That starts with what your bed is made of and how that translates to its feel and durability. Let's dive in.

Feel & Firmness

  • Firmness Level: The Plank Firm is flippable with two distinct firmness levels. The Firm side sits around an 8 out of 10 and offers a traditional firm feel with a thin comfort layer at the surface. The Extra-Firm side sits at a 9 to 9.5 out of 10 and provides essentially zero give -- just the flat, unyielding surface of the high-density foam base. Both sides are available to test in our showroom.
  • Feel Description: There is very little to describe in terms of contouring or pressure relief because neither side of this mattress is designed to provide those things. On the Firm side, you'll notice a thin quilted surface that adds a slight hint of cushion before transitioning into the dense foam below. On the Extra-Firm side, you're sleeping directly on the quilted cover over the high-density core -- a completely flat, solid surface with no give whatsoever. On both sides, your body stays on top of the mattress rather than sinking into it.
  • Our Take: The Plank Firm’s ratings profile is unusual compared to every other mattress we carry, and that's exactly the point. The 9.0 ease of movement score is the highest we give any mattress in our showroom -- because sleeping on a firm, flat surface makes repositioning completely effortless. The 5.0 pressure relief score is equally intentional -- this mattress provides spinal alignment support, not cushioning. If the rest of our lineup has felt too soft, too contouring, or too slow, the Plank Firm is the direct answer. If you're not sure whether firm is right for you, trying it in-store before committing is especially important.

Construction & Materials

Height: 10"

Design: Flippable all-foam mattress with Firm and Extra-Firm sides.

Layer Breakdown:

Firm Side (top)

  1. Quilted Cover with Track-and-Jump Stitching: Minimal-loft cover designed to keep the surface flat and firm. Track-and-jump stitching prevents the quilting from adding any unnecessary softness to the feel.
  2. Supreme Response Comfort Foam: A thin layer that adds a slight hint of surface cushion on the Firm side without compromising the overall firm character. Provides the modest pressure contact needed to distinguish this side from the Extra-Firm.
  3. High-Density Support Foam: A dense foam layer that delivers the firm, flat support the Plank is known for.

Extra-Firm Side (bottom/flipped)

  1. Quilted Cover: Minimal quilted cover directly over the high-density core -- no additional comfort foam layer on this side.
  2. High-Density Core Foam (6"): The full 6" high-density base is what you're sleeping on when the mattress is flipped to the Extra-Firm side. No intermediate layers, no give, no sink.

Cooling Upgrade: The optional GlacioTexâ„¢ Cooling Cover replaces the standard quilted cover with a phase change material (PCM) cool-to-the-touch cover for active, sustained temperature regulation. Open-cell foam technology throughout the mattress supports natural airflow, but the GlacioTex upgrade is the most meaningful cooling addition for consistent hot sleepers.

Why It Matters: The Plank Firm’s simplicity is deliberate. Fewer layers means nothing between your body and the supportive foam base. The high-density core is designed to hold its shape under sustained body weight without sagging, which is the primary durability concern with firm all-foam mattresses. CertiPUR-US® certified foams throughout, no fiberglass.

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Our Ratings & Advice

We've tested over 1,000 mattresses in the last 10 years and helped serve better sleep to over 1 million shoppers. Our ratings are born out of lab-based testing and real world evaluations.

Performance Breakdown

CategoryOur RatingSummary
Pressure Relief5 / 10Below average -- and intentionally so. The Plank Firm is not designed to cushion pressure points. Both sides prioritize flat, uncompromising support over contouring. Sleepers who need pressure relief at the shoulders or hips are not the target customer for this mattress.
Cooling7.5 / 10Above average for an all-foam mattress. The firm construction keeps sleepers on top of the foam rather than sinking in, which naturally reduces heat buildup compared to softer foam mattresses. Open-cell foam technology supports airflow through the layers. The optional GlacioTexâ„¢ Cooling Cover meaningfully improves this score for hot sleepers.
Support7 / 10Good. The high-density foam base and firm construction provide solid structural support for back and stomach sleepers who need a flat, stable surface. The Extra-Firm side delivers maximum support.
Motion Isolation6.5 / 10Decent for an all-foam mattress. The firm, dense foam layers absorb some partner movement, though the lack of any motion-dampening comfort foam means cross-surface transfer is more present than on a softer foam mattress.
Edge Support6.5 / 10Decent. Without a coil perimeter, the edges compress under body weight more than a hybrid would, though the firm, high-density construction holds up reasonably well compared to softer all-foam options. The Plank Firm Luxe, with its individually encased coil core, offers meaningfully better edge support if that's a priority.
Ease of Movement9 / 10The standout score and one of the highest we give any mattress in our showroom. On a firm, flat surface with no significant sinkage, repositioning is completely effortless. This is one of the practical benefits of a firm mattress that often goes unnoticed until you try it.

Sleep Position Ratings

Not recommended. The lack of pressure relief at the shoulders and hips makes the Plank Firm a poor fit for side sleeping at any body weight. Side sleepers should look elsewhere in our showroom.

Very good, particularly for those who prefer a firm surface or have been advised to sleep on one. The high-density base promotes neutral spinal alignment without any sinkage at the lumbar region. Heavier back sleepers may find the Extra-Firm side provides better sustained alignment over a full night.

Excellent -- arguably the strongest use case for this mattress across any body weight. The flat, firm surface keeps the hips level with the shoulders and prevents the spinal dip that causes lower back pain for stomach sleepers on softer mattresses. Both the Firm and Extra-Firm sides work well here, with heavier stomach sleepers often preferring the Extra-Firm.

Good for those who primarily sleep on their back or stomach and shift occasionally. The 9.0 ease of movement score makes repositioning completely natural, but combination sleepers who regularly move into side-sleeping positions will notice the pressure trade-off.

Final Verdict

The Brooklyn Bedding Plank Firm is the right mattress for a specific and underserved sleeper -- one who finds conventional mattresses too soft and needs a flat, stable, and uncompromising sleep surface. The flippable design offering both Firm and Extra-Firm sides, the 9.0 ease of movement score point to a product that executes its singular purpose as well as any mattress available.

The pressure relief and edge support trade-offs are not flaws -- they are natural consequences of a design that prioritizes support over contouring. For the right sleeper, this mattress is exactly what they've been looking for.

Best For

  • ✓ Stomach sleepers at any body weight who need a flat, firm surface for spinal alignment
  • ✓ Back sleepers who have found every other mattress too soft
  • ✓ Sleepers who need a firm or extra-firm surface for medical or postural reasons
  • ✓ Those who prioritize maximum ease of movement and minimal sinkage
  • ✓ Combination sleepers who primarily sleep on their back or stomach

Not Ideal For

  • ✗ Side sleepers at any body weight -- the lack of pressure relief makes this a poor fit
  • ✗ Sleepers who want any degree of contouring or cushioning
  • ✗ Couples where one partner prefers a medium or soft feel
  • ✗ Hot sleepers without the GlacioTexâ„¢ Cooling Cover upgrade
  • ✗ Those who need strong edge support -- consider the Plank Firm Luxe

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Why Shop Local?

Try Before You Buy — Right Here in Seattle

Visit our Seattle mattress showroom to try both sides of the Plank Firm in person. Our team will:

  • Help you feel the real difference between the Firm and Extra-Firm sides so you know which to start on when the mattress arrives.
  • Compare the Plank Firm and the Plank Firm Luxe side by side so you can decide whether the all-foam construction or the hybrid step-up is right for your needs.

Shopping locally matters more for this mattress than most. The Plank Firm is a polarizing product -- sleepers who need it will find it transformative, and those who don't will find it uncomfortable. There is no better way to know which camp you're in than to lie down on it.

Best Price Guarantee

We back every mattress in our Lower Queen Anne showroom with a best price guarantee. Find a lower price anywhere else, whether that's another local mattress store in Seattle or the brand's own website, and we'll match it. You get the benefit of testing mattresses in person without paying more for the convenience.

Decades of Sleep Product Expertise

As one of the most trusted voices in mattress reviews on the web, our recommendations come from real product knowledge, not a commission sheet. When you ask us which mattress fits your sleep style, you're getting an answer grounded in genuine expertise.

Locally Owned, Community Rooted

Unlike the national mattress chains scattered across Seattle, The Drift is locally owned and operated, born and built right here in the Pacific Northwest. We live in this community. Our customers are our neighbors, not just transactions. That means honest recommendations, personal service, and a mattress shopping experience that actually cares whether you leave with the right bed, not just any bed.

Personalized, No-Pressure Guidance

Shopping for a mattress shouldn't feel like a hard sell. At The Drift, our team takes the time to understand your sleep style, health considerations, and preferences before recommending a single mattress. No commission-driven pressure, no pushing whatever's on sale. Just honest guidance aimed at finding the mattress that's actually right for you.