Brooklyn Bedding Plank Firm review

Plank Firm is the pick for sleepers who have tried medium beds and still wake up with their hips sunk in. Brooklyn Bedding calls it the firmest all-foam mattress it makes, with an extra-firm side it rates a ten on its own scale and a flip side that feels medium firm. The build is simple: a 6-inch high-density base foam core, 2 inches of Supreme Response comfort foam and thin quilted surfaces on both faces. Brooklyn Bedding says the American Chiropractic Association endorses the mattress, and it lists back pain, back sleepers and stomach sleepers as the best fit. The queen lists at $1,332 before discount, and a 30% sitewide code was running when we checked. A 365-night trial and limited lifetime warranty are included. If you want coils, the Plank Firm Luxe hybrid adds 6-inch Ascension Firm coils at $1,598 for a queen before discount.

Who it is for

Back and stomach sleepers who want the firmest surface and no sinking at all.

Price

Queen $1,332 before discount; a 30% sitewide code was running when checked.

Plank Firm The Firmest All-Foam Mattress Price Details (Before Discount): Twin - $749 Twin XL - $849 Full - $999 Queen - $1,332
Quoted from the vendor pricing page on November 11, 2026.

Key features

• Flippable design: extra-firm side rated ten on Brooklyn Bedding's firmness scale, medium-firm on the other
• 6-inch high-density base foam core and 2 inches of Supreme Response comfort foam
• Endorsed by the American Chiropractic Association, per Brooklyn Bedding
• Optional GlacioTex cooling cover
• 365-night trial and limited lifetime warranty; Plank Firm Luxe hybrid version with firm coils

Strengths and weaknesses

• Strength: Two firmness levels in one mattress
• Strength: Lowest list price per queen among the firm-focused picks
• Strength: Hybrid Plank Firm Luxe available for people who want coils
• Weakness: Very firm, so side sleepers may feel pressure at the shoulders
• Weakness: All-foam build has no coil airflow
• Weakness: Cooling cover is an add-on

Key facts

• Queen price: $1,332 before discount
• Height: 10 in, 4 layers
• Feel: Flippable: firm or extra firm
• Trial and warranty: 365 nights, limited lifetime

Where it ranks

Brooklyn Bedding Plank Firm is No. 2 in our Best Mattresses for Back Pain verdict.