• Mattress on a platform bed with award badges above it
  • Man standing next to a white and black exercise board with 'Flippable' and 'Plank' branding, endorsed by ACA.
  • Detailed cross-section of a mattress with labeled layers and features.
  • Two people lying on a PLANK mattress with a scale indicating firmness levels.
  • Mattress warehouse man wearing glasses and a branded Brooklyn Bedding t-shirt with a 'Designed & Assembled in Arizona' badge in the corner.
  • Mattress with 'Plank' branding on a white background
  • Mattress with 'Pillar' branding on a white background
  • White textured fabric background
  • White quilted fabric texture
  • Textured white mattress cover with 'Cooling' label on a light blue background
  • Hexagonal patterned mattress topper with 'Cooling' label
1 11

Brooklyn Bedding

Plank Firm 10" Foam Mattress

Plank Firm 10" Foam Mattress

$524.30 USD
$749.00 USD $524.30 USD
Sale Sold out
Shipping calculated at checkout.

Experience Supreme Firmness — Without Compromise

Meet the Plank Firm, designed for those who demand steadfast support and a level sleep surface. Built to be ultra-firm, this mattress keeps your spine aligned, reduces pressure points, and helps you rest more fully.

Ultra-Firm Support. Dual-Sided Design. Chiropractor Endorsed.

The Plank Firm mattress is designed for sleepers who crave an ultra-firm sleep surface and optimal spinal alignment. Featuring a flippable design with two firmness levels — firm and extra-firm — this mattress provides customizable support that promotes a neutral spine and reduces pressure points.

Engineered with high-density support foam and minimal loft quilting, the Plank Firm delivers a flat, even surface ideal for back and stomach sleepers. Its optional GlacioTex™ cooling cover enhances breathability and keeps you comfortably cool all night.

Backed by a 120-night trial and endorsed by the American Chiropractic Association, the Plank Firm is the go-to choice for those who take their sleep — and their support — seriously.

View full details

Shop Bases

1 9
View all

Flexible Financing Available

Choose the payment option that works best for you

Most Popular

Zero Down Payment

$0 Down 0% Interest

No money down, no interest for qualified buyers

Up to 48 months*

Low Down Payment

$39 Down

Get approved instantly with minimal down payment

No credit needed

Shop Pay and Synchrony financing available during checkout

Shop Pay Synchrony

Why Choose Sleep City?

Discover what makes us the premier destination for quality sleep solutions

Premium Quality

Hand-selected mattresses from top brands ensuring the highest quality sleep experience

Expert Guidance

Our sleep specialists help you find the perfect mattress for your unique needs

Fast Delivery

Quick and reliable delivery service to get your new mattress to you fast

Extended Warranties

We're so confident in the mattresses we sell, we add 5 years to any factory warranty

Family-Owned & Operated

A local family business that has been serving our community with pride for generations

Real Support from Real People

Genuine care and personalized support from our dedicated team who truly care about your sleep

0

Happy Customers

0

Years Experience

0

Five-Star Reviews