Collections – Plank Mattress

Skip to content

30% OFF Sitewide Use Promo Code: FLASH30 Details

Plank Firm The Firmest All-Foam Mattress
Plank Firm Luxe The Firmest Hybrid Mattress
Shop All Mattresses

Plank Firm Topper Transform your mattress to extra-firm support
Pillows
Sheets
Mattress Protection
Duvet Set & Insert
Foundations
Adjustable Bases
Shop All Accessories

Total items in cart: 0 0

+1 623-624-1222

0% APR Financing

Total items in cart: 0 0

Mattresses
Accessories
Blog
About Us

Collections

Brooklyn Bedding Luxury Cooling Pillow

Accessories

Adjustable Bases

Adjustable Bases

Adjustable Bases

Ascension® Bi-Fold Foundation Final Clearance

All

All

All-Season Alt-Down Duvet Insert

Blankets

Duvet Set & Insert

Duvet Set & Insert

Duvet Set & Insert

Foundations

Foundations

Masks

Mattress Protection

Mattress Protection

Mattress Protection

Mattress Toppers

Mattress Toppers

Mattress Toppers

Mattresses

Mattresses

Pillows

Pillows

Sheets

Sheets

120 Night Trial
Limited Lifetime Warranty

ABOUT OUR TRIAL

Free
Shipping

ABOUT OUR POLICY

Talk To A
Sleep Expert

Our Products Our Products

Mattresses
Sheets
Pillows
Duvet Set & Insert
Foundations
Adjustable Bases
Mattress Protection
Need a Topper? (opens in a new window)

Customer Care Customer Care

Contact Us
My Orders (opens in a new window)
FAQs (opens in a new window)
Return Policy
Shipping Policy
Warranty Policy
Financing
ESG Report (opens in a new window)
Accessibility Statement

Resources Resources

Military Discount
First Responders Discount
Educators Discount
Students Discount
Medical Providers Discount
Best Mattress (opens in a new window)
Chiropractor Program
Ambassador Program
Pay with HSA/FSA

Sister Sites Sister Sites

BrooklynBedding.com (opens in a new window)
The Mattress Shop (opens in a new window)
Brooklyn Bedding (opens in a new window)
Titan Mattress (opens in a new window)
RV Mattress (opens in a new window)
Dreamfoam Bedding (opens in a new window)

Connect

(opens in a new window)

(opens in a new window)

© 2026 Plank Mattress

Privacy Policy
Terms & Conditions
Terms of Use
CPRA Privacy Notice
Do Not Sell or Share My Personal Information
Text Messaging Terms & Conditions

+1 623-624-1222 | Contact Us

Search

Products

Ascension® Bi-Fold Foundation - Final Clearance Price
Liquid error (snippets/resource-card line 178): invalid url input

Ascension® Bi-Fold Foundation - Final Clearance Price

$124.50
Ascension® Luxe Adjustable Power Base
Liquid error (snippets/resource-card line 178): invalid url input

Ascension® Luxe Adjustable Power Base

Regular price ~~$699.00~~ Sale price $489.30
Ascension® Ultra Adjustable Power Base
Liquid error (snippets/resource-card line 178): invalid url input

Ascension® Ultra Adjustable Power Base

Regular price ~~$1,099.00~~ Sale price $769.30
Brooklyn Bedding Mattress Encasement
Liquid error (snippets/resource-card line 178): invalid url input

Brooklyn Bedding Mattress Encasement

Regular price ~~$89.00~~ Sale price $62.30