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Plank Firm Mattress Review: Best for Back Sleepers
The Plank Firm is an extra-firm hybrid mattress from Brooklyn Bedding. It suits back and stomach sleepers who need strong support. Its standout trait is the flippable design with two firmness levels. Owners report it helps maintain spinal alignment and reduces pressure on hips and shoulders.
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The Plank Firm is a solid choice for back sleepers who prefer a very firm feel. It offers excellent support and durability, though it may be too hard for side sleepers or those who like plush comfort. If you need a firm, supportive bed, it is worth considering.
How it scores
The good and the annoying
- Flippable design offers two firmness levels
- Excellent support for back and stomach sleepers
- High-density foam and coil construction for durability
- Good edge support, making it easier to sit or sleep near the edge
- Too firm for side sleepers or those who prefer plush comfort
- Limited motion isolation compared to all-foam mattresses
- Heavy and difficult to move or flip
The Plank Firm is an extra-firm hybrid mattress from Brooklyn Bedding. It suits back and stomach sleepers who need strong support. Its standout trait is the flippable design with two firmness levels. Owners report it helps maintain spinal alignment and reduces pressure on hips and shoulders.
What to Look for in a Mattress for Back Sleepers
Back sleepers need a mattress that keeps the spine in neutral alignment. A medium-firm to firm feel is often recommended, as it provides enough support to prevent the hips from sinking too deep. Look for materials like high-density foam and innerspring coils, which offer durability and support. Consider your weight and sleeping position, as heavier individuals may need a firmer mattress. Edge support is also important for getting in and out of bed easily. Finally, check the trial period and warranty to ensure you can test the mattress at home.
How the Plank Firm Compares to Other Firm Mattresses
The Plank Firm stands out because it is flippable, offering two distinct firmness levels. Most firm mattresses have only one side, so this is a unique feature. Compared to all-foam firm mattresses, the Plank Firm has better edge support and airflow due to its coil base. Owners report that it is firmer than many other 'firm' mattresses, so it is not for everyone. If you are considering a firm mattress, it is worth comparing the Plank Firm with models like the Casper Original or the Tuft & Needle, which are medium-firm. The Plank Firm is a better choice if you want a truly firm surface.
Specs that matter
| Type | Hybrid (coils and foam) |
| Firmness | Firm (7/10) and Extra Firm (8/10) |
| Height | 10.5 inches |
| Warranty | 10-year limited warranty |
| Trial | 120-night sleep trial |
| Made in | USA |
Buy the Plank Firm if you are a back or stomach sleeper who wants a very firm, supportive mattress with a flippable design.
Skip it if you are a side sleeper or prefer a soft, plush feel, as the Plank Firm is extremely firm.
Questions before you buy
Is the Plank Firm good for back sleepers?
Yes, the Plank Firm is excellent for back sleepers. Its firm surface keeps the spine aligned and prevents the hips from sinking. Many back sleepers find it comfortable and supportive.
What firmness levels does the Plank Firm offer?
The Plank Firm has two sides: one is Firm (7/10) and the other is Extra Firm (8/10). You can choose which side to sleep on based on your preference.
How does the Plank Firm compare to the Plank Soft?
The Plank Soft is a softer version of the Plank, with a plush top layer. The Plank Firm is significantly firmer, making it better for back and stomach sleepers. The Plank Soft is better for side sleepers.
Is the Plank Firm too firm for side sleepers?
Most side sleepers find the Plank Firm too hard. It can cause pressure points on the hips and shoulders. Side sleepers usually prefer a softer mattress like the Plank Soft.
Does the Plank Firm sleep hot?
The Plank Firm has a coil base that promotes airflow, so it sleeps cooler than many all-foam mattresses. The foam layers are also breathable, helping to regulate temperature.
Can you flip the Plank Firm?
Yes, the Plank Firm is flippable. You can choose between the Firm and Extra Firm sides. Flipping is easy but the mattress is heavy, so you may need help.
What is the warranty on the Plank Firm?
The Plank Firm comes with a 10-year limited warranty. It covers manufacturing defects and workmanship issues. The warranty is standard for the industry.
Is the Plank Firm worth the price?
Given its durable construction and flippable design, many owners think it is worth the price. It offers good value for a hybrid mattress with a 120-night trial and 10-year warranty.
