Plank Firm · Review
Plank Mattress Review - The Best Firm Mattress on the Market?
NapLab · YouTube ↗
1 / 1Images: Brooklyn Bedding. Shown size and configuration may vary.
Plank Firm
Best for: Very firm, flippable foam
A 10″ flippable all-foam mattress, firm on one side and extra firm on the other, sold in short full, short queen, Olympic queen, short king and three RV kings.
Good to know: Brooklyn Bedding calls it a ten on its firmness scale, so it suits people who want a very firm bed.
- Type
- Foam
- Height
- 10″
- Sizes
- 14 ready-made
- Certified
- CertiPUR-US, Greenguard Gold
Firmness, according to reviewersFirm
Pick it if
- You sleep on your back
- You sleep on your stomach
- You’re a heavier person
- You sit on the edge or use all of it
Skip it if
- You sleep on your side
- You’re on the lighter side
- Your partner moves a lot
From independent reviewers’ findings, credited below.
66 × 80 in · 10″ tall
Where to get it
- brooklynbedding.comQueen $1,332 (sale price) · checked Oct 16 See price
- For heavier peopleReviewers: Best for sleepers over 230 lb See the list
Returns: 365 nights from delivery; returns processed only after 30 days from delivery; one trial per customer Details
We may earn a commission if you buy. Check the price for your exact size and height on the seller’s site.
The short version
Worth a look if
- Very firm, flippable foam
Good
- A 10″ flippable all-foam mattress, firm on one side and extra firm on the other, sold in short full, short queen, Olympic queen, short king and three RV kings.
- 2 firmness choices: Firm, Extra Firm (flippable: one side each)
- Trial: 365 nights from delivery; returns processed only after 30 days from delivery; one trial per customer
- Owners who like a very firm bed rated it 5 out of 5 for back support and sleep quality, including one after 3 years of use (May-Jun 2026).
Think about
- Brooklyn Bedding calls it a ten on its firmness scale, so it suits people who want a very firm bed.
- A 250-300 lb side sleeper rated back support and pressure relief only 3 out of 5 after 4 years (Apr 2026).
- A 4-year owner of the cooling-cover version, sleeping on the firm side, called it moderately worn and rated support and pressure relief 3 out of 5 (Jan 2026).
Based on the maker’s published specs and terms, and the owner reviews linked below. We haven’t slept on it. Something wrong? Tell us.
What owners say
From owners of this model A small set of real reviews, each linked to its source. Not a star rating.
Small sample · 6 owner reports
Most Plank owners on GoodBed rate it well even after several years, though heavier sleepers and one firm-side owner gave middling scores.
What people liked
What independent reviewers found
- Sleep Foundation (Oct 2026): Testers found both sides very firm and stable, best for back and stomach sleepers over 230 pounds, with strong edges and a cooler surface than most foam beds; it gave little pressure relief for side sleepers and passed more motion than typical foam. Page carries shop links and discount offers. Read it ↗
- Mattress Clarity (Oct 2026): Testers said it suits heavier and stomach sleepers, but lighter side sleepers felt it too hard, cooling was slightly below average, and the extra-firm side had the steadier edges and motion results. Tested both sides. Site discloses affiliate programs and free review products. Read it ↗
- NapLab (Oct 2026): The firmest mattress NapLab has tested; flippable firm and extra-firm sides. Very fast response and solid edges; cooling 9.0. Very little sinkage may cause pressure issues, and motion transfer was fairly high. Tested both sides. NapLab discloses affiliate links. Read it ↗
- Mattress Nerd (Oct 2026): For people who find most beds too soft, back and stomach sleepers, and some with back pain. Not for side sleepers wanting cushion, hot sleepers, or couples bothered by motion. Mattress Nerd discloses affiliate commissions. Read it ↗
Their testing, in our words. We haven’t tested these mattresses ourselves, and we don’t repeat their scores.
Sources & sample limits
6 ratings-only GoodBed owner reviews naming the Plank (all-foam), Jun 2025-Jun 2026. Sample: 6 owner reports.
GoodBed lists these as 'Plank' without a generation; one is the Natural Firm version and one has the cooling cover, so older or sibling versions are mixed in. Ratings only, no written text. Plank Luxe Hybrid reviews on the same page were not used.
Research checked October 14, 2026. These are sourced observations, not our own product tests or a star rating.
Inside the Plank
Every size it comes in
Olympic queen66 × 80 in10″RV king72 × 80 in10″Short king72 × 75 in10″Short full48 × 74 in10″Short queen · 74-inch60 × 74 in10″RV king (70 × 80)70 × 80 in10″Short RV king (70 × 74)70 × 74 in10″Bunk (36 × 84)36 × 84 in10″Twin XL38 × 80 in10″Full · 53-inch53 × 75 in10″Queen60 × 80 in10″King76 × 80 in10″California king72 × 84 in10″Twin38 × 74 inAs listed
Taken from the maker’s size options, in the inches it publishes. Tap a size to compare every mattress made in it. Sizes marked “as listed” don’t exactly match a standard size, so check your frame.
Price for every size
From the maker’s site on Oct 26, 2026. Prices change often, so check before you buy.
| Size | Inches | Price | |
|---|---|---|---|
| Twin | 38 × 74 | From $749 | See it |
| Split CA King (one half; order 2 for a set) | 36 × 84 | From $849 | See it |
| Twin XL | 38 × 80 | From $849 | See it |
| Short Full | 48 × 74 | From $999 | See it |
| Full | 53 × 75 | From $999 | See it |
| Short Queen | 60 × 74 | From $1,332 | See it |
| Queen | 60 × 80 | From $1,332 | See it |
| RV King 70x74 | 70 × 74 | From $1,532 | See it |
| Olympic Queen | 66 × 80 | From $1,532 | See it |
| Short King | 72 × 75 | From $1,532 | See it |
| RV King 70x80 | 70 × 80 | From $1,532 | See it |
| RV King 72x80 | 72 × 80 | From $1,532 | See it |
| CA King | 72 × 84 | From $1,532 | See it |
| King | 76 × 80 | From $1,532 | See it |
Video reviews
How it compares
Beside the most similar mattresses from other brands.
| Plank FirmBrooklyn Bedding | The OneCasper | Luxe Memory FoamDreamCloud | Premier Memory FoamDreamCloud | |
|---|---|---|---|---|
| Type | Foam | Foam | Memory foam | Memory foam |
| Queen price | $1,332 | $899 | $1,699 | $1,199 |
| Height | 10″ | 11″ | 14″ | 13″ |
| Trial | 365 nights | 100 nights | 365 nights | 365 nights |
| Odd sizes | 8 | None | None | None |
| Expert reviews | 4 | 3 | 2 | 4 |
What’s inside
- 1Optional GlacioTex cooling cover (extra-firm side)
- 20.75in quilted top
- 36in high-density base foam
- 42in Supreme Response comfort foam
- 50.75in quilted bottom
- 6Optional GlacioTex cooling cover (firm side)
- Feel
- Firm, Extra Firm (flippable: one side each)
- Height
- 10″
- Custom sizes
- Not offered for this model
Complete the bed
Odd sizes need everything else in the same inches. Here’s what we have for this mattress’s odd sizes.
Olympic queen · 66 × 80
RV king · 72 × 80
Short king · 72 × 75
Short full · 48 × 74
Short queen · 74-inch · 60 × 74
RV king (70 × 80) · 70 × 80
Short RV king (70 × 74) · 70 × 74
Bunk (36 × 84) · 36 × 84
Returns and ordering
Trial and returns
365 nights from delivery; returns processed only after 30 days from delivery; one trial per customer
Before you order
- Measure inside the frame, not the old mattress
- Check clearance above for the height you pick
- Make sure your base supports it
- Buy sheets in the same exact size
Questions
What is it made of?
Flippable all-foam mattress: a 6in high-density base foam and 2in comfort foam between two quilted surfaces, firm on one side and extra firm on the other. Optional GlacioTex cooling cover.
How firm is it?
Firm, Extra Firm (flippable: one side each) That’s the maker’s description; we haven’t measured it.
Which sizes and heights can I get?
14 sizes, 10″. See every size. Confirm your exact size and height with the seller.
Are the reviews about this exact mattress?
From owners of this model. GoodBed lists these as 'Plank' without a generation; one is the Natural Firm version and one has the cooling cover, so older or sibling versions are mixed in. Ratings only, no written text. Plank Luxe Hybrid reviews on the same page were not used.
Where did this information come from?
- sizes and inches (variant labels), feel, layers, height, trial and warranty badges, Regular/Sale price display and FALL25 banner (fetched 2026-10-16)
- Shopify variant list: every size label and the Queen variant price
- seller size guide inches for standard sizes (Twin 38x74, Twin XL 38x80, Full 53x75, Full XL 53x80, Queen 60x80, King 76x80, CA King 72x84) and RV sizes
- 365-night trial, 30-day wait before a return, one trial per customer
- limited lifetime warranty terms and proration
Checked 2026-10-16. Specs and terms can change.
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