Firm King Mattresses for Sale

Skip to Main Content

PRE-TARIFF PRICING ON ALL SALE ITEMS! Icon

PRE-TARIFF PRICING ON ALL SALE ITEMS!

55 MONTHS INTEREST FREE FINANCING* Icon

55 MONTHS INTEREST FREE FINANCING*

Skip to primary navigation

Find your furniture

Find your furniture

LIVING ROOMS
Sofas, Sectionals & Modulars
Living Room Sets
Living Room Sets
Sofas
Sofas
Sectionals & Modulars
Sectionals & Modulars
Loveseats
Loveseats
Sleeper Sets
Sleeper Sets
Reclining
Reclining Sets
Reclining Sets
La-Z-Boy
La-Z-Boy
Recliners
Recliners
Reclining Sofas
Reclining Sofas
Reclining Sectionals
Reclining Sectionals
Reclining Loveseats
Reclining Loveseats
Shop All Reclining
Shop All Reclining
Chairs
Accent Chairs
Accent Chairs
Chaises & Settees
Chaises & Settees
Shop All Chairs
Shop All Chairs
Tables
Table Sets
Table Sets
Coffee Tables
Coffee Tables
End Tables
End Tables
Console Tables
Console Tables
Accent Tables
Accent Tables
Ottomans
Ottomans
Home Entertainment
TV Consoles & Wall Stands
TV Consoles & Wall Stands
Wall Units
Wall Units
Shop by Material
Leather Living Rooms
Leather Living Rooms
Fabric Living Rooms
Fabric Living Rooms
Accessories
Lighting
Lighting
Rugs
Rugs
Brands & Collections
Cindy Crawford
Cindy Crawford
Meet The Modulars
Meet The Modulars
Drew & Jonathan
Drew & Jonathan
Shaq Collection
Shaq Collection
Small Spaces
Small Spaces
Shop All Brands
Shop All Brands
Living Room Sales
Memorial Day Living Rooms
Memorial Day Living Rooms
Last Chance Savings
Last Chance Savings
Shop by Style
Shop by Style
In Stock Living Rooms
In Stock Living Rooms
Shop New Arrivals
Shop New Arrivals
Shop All Living Rooms
Shop All Living Rooms
DINING ROOMS
Dining Room Sets
Standard Height Sets
Standard Height Sets
Counter Height Sets
Counter Height Sets
Shop All Dining Sets
Shop All Dining Sets
Seating
Arm Chairs
Arm Chairs
Side Chairs
Side Chairs
Barstools
Barstools
Benches
Benches
Shop All Seating
Shop All Seating
Tables
Standard Height
Standard Height
Counter Height
Counter Height
Shop All Dining Tables
Shop All Dining Tables
Dining Accents
Servers, Buffets, & Sideboards
Servers, Buffets, & Sideboards
China Cabinets
China Cabinets
Bar Carts
Bar Carts
Lighting
Lighting
Rugs
Rugs
Shop All Dining Accents
Shop All Dining Accents
Brands & Collections
Small Spaces
Small Spaces
Cindy Crawford
Cindy Crawford
Drew & Jonathan
Drew & Jonathan
Shop All Brands
Shop All Brands
Dining Room Sales
Memorial Day Dining Rooms
Memorial Day Dining Rooms
Last Chance Savings
Last Chance Savings
Shop by Style
Shop by Style
In Stock Dining Rooms
In Stock Dining Rooms
Shop New Arrivals
Shop New Arrivals
Shop All Dining Rooms
Shop All Dining Rooms
BEDROOMS
Bedroom Sets
Queen Bedroom Sets
Queen Bedroom Sets
King Bedroom Sets
King Bedroom Sets
Shop All Bedroom Sets
Shop All Bedroom Sets
Beds
Queen Beds
Queen Beds
King Beds
King Beds
Daybeds
Daybeds
Headboards
Queen Headboards
Queen Headboards
King Headboards
King Headboards
Twin Headboards
Twin Headboards
Full Headboards
Full Headboards
Dressers, Chests, & Nightstands
Dressers
Dressers
Dresser Mirrors
Dresser Mirrors
Chests
Chests
Nightstands
Nightstands
Bedding
Comforter Sets
Comforter Sets
Sheet Sets
Sheet Sets
Duvets
Duvets
Throw Blankets
Throw Blankets
Accessories
Lighting
Lighting
Rugs
Rugs
Accent Benches
Accent Benches
Vanity Sets
Vanity Sets
Brands & Collections
Small Spaces
Small Spaces
Drew & Jonathan
Drew & Jonathan
Cindy Crawford
Cindy Crawford
Shop All Brands
Shop All Brands
Bedroom Sales
Memorial Day Bedrooms
Memorial Day Bedrooms
Last Chance Savings
Last Chance Savings
Shop by Style
Shop by Style
In Stock Bedrooms
In Stock Bedrooms
Shop New Arrivals
Shop New Arrivals
Shop All Bedrooms
Shop All Bedrooms
MATTRESS
Size
Crib
Crib
Twin
Twin
Twin XL
Twin XL
Full
Full
Queen
Queen
King
King
Split King
Split King
California King
California King
Accessories
Mattress Protectors
Mattress Protectors
Pillows
Pillows
Sheet Sets
Sheet Sets
Adjustable Bases & Frames
Adjustable Bases & Frames
Brands
Tempur-Pedic
Tempur-Pedic
Beautyrest
Beautyrest
Sealy
Sealy
Serta
Serta
Therapedic
Therapedic
Casper
Casper
Beautyrest Black
Beautyrest Black
Stearns & Foster
Stearns & Foster
iComfort by Serta
iComfort by Serta
Tuft & Needle
Tuft & Needle
Kingsdown
Kingsdown
Nectar
Nectar
Drew & Jonathan
Drew & Jonathan
Molecule
Molecule
Bedgear
Bedgear
PureCare
PureCare
View All Mattress Brands
View All Mattress Brands
Mattress Offer
Any Size, One Price
Any Size, One Price
Buy One, Get One Free
Buy One, Get One Free
Save up to $1000
Save up to $1000
Save up to $500
Save up to $500
In Stock Mattresses
In Stock Mattresses
Shop All Mattresses
Shop All Mattresses
PATIO
Seating Sets
Patio Seating Sets
Patio Seating Sets
Sofas
Sofas
Sectionals
Sectionals
Loveseats
Loveseats
Chat Sets
Chat Sets
Chairs
Chairs
Chaises & Lounges
Chaises & Lounges
Cocktail Tables
Cocktail Tables
End Tables
End Tables
Dining
Patio Dining Sets
Patio Dining Sets
Tables
Tables
Chairs
Chairs
Benches
Benches
Bar
Bar
Balcony
Balcony
Outdoor Heating
Outdoor Heating
Accessories
Covers & Cleaners
Covers & Cleaners
Patio Decor
Umbrellas
Umbrellas
Pillows
Pillows
Rugs
Rugs
Lanterns & Lighting
Lanterns & Lighting
Decorative Accents
Decorative Accents
Wall Decor
Wall Decor
Artificial Outdoor Plants
Artificial Outdoor Plants
Ottomans & Poufs
Ottomans & Poufs
Garden Stools
Garden Stools
Collections
Cindy Crawford
Cindy Crawford
Small Spaces
Small Spaces
Solana
Solana
Lake Tahoe
Lake Tahoe
Patmos
Patmos
Pleasant Bay
Pleasant Bay
View All Collections
View All Collections
Patio Sales
Shop Patio Sale
Shop Patio Sale
BOGO Free Chair
BOGO Free Chair
BOGO Chaises
BOGO Chaises
In Stock Patio
In Stock Patio
Shop All Patio
Shop All Patio
KIDS & TEENS
Kids Bedroom Sets
Twin Sets
Twin Sets
Full Sets
Full Sets
Beds
Twin
Twin
Full
Full
Bunk Beds & Lofts
Bunk Beds & Lofts
Dressers & Chests
Dressers
Dressers
Dresser Mirrors
Dresser Mirrors
Chests
Chests
Nightstands
Nightstands
Vanities
Vanities
Mattresses
Twin
Twin
Full
Full
Crib
Crib
Study Space & Playroom
Desks
Desks
Desk Chairs
Desk Chairs
Kids Gaming Chairs
Kids Gaming Chairs
Seating
Seating
Bookcases & Storage
Bookcases & Storage
Table Sets
Table Sets
Nursery
Cribs & Toddler Beds
Cribs & Toddler Beds
Crib Linens & Bedding
Crib Linens & Bedding
Changing Tables
Changing Tables
Nursery Chairs
Nursery Chairs
Shop All
Shop All
Kids Collections
Disney Princess
Disney Princess
Disney Frozen
Disney Frozen
Star Wars
Star Wars
Disney Baby
Disney Baby
Shop All Kids Collections
Shop All Kids Collections
Kids Décor & More
Rugs
Rugs
Lighting
Lighting
Accents
Accents
Bedding
Bedding
Kids & Teens Sales
Shop Kids Sale >
Shop Kids Sale >
Kids Rugs & Décor
Kids Rugs & Décor
Kids In Stock
Kids In Stock
Shop New Arrivals
Shop New Arrivals
Shop Kids Inspiration
Shop Kids Inspiration
Shop All Kids Furniture
Shop All Kids Furniture
RUGS & DECOR
Home Decor
Bar Height Barstools
Bar Height Barstools
Counter Height Barstools
Counter Height Barstools
Accent Cabinets
Accent Cabinets
Accent Chairs
Accent Chairs
Accent Tables
Accent Tables
Bar Carts
Bar Carts
Accent Benches
Accent Benches
Poufs & Ottomans
Poufs & Ottomans
Home Office
Desks
Desks
Desk Chairs
Desk Chairs
Bookcases
Bookcases
Gaming Zone
Gaming Zone
Study Space
Study Space
Shop All Home Office
Shop All Home Office
Rugs
Rugs up to 4' x 6'
Rugs up to 4' x 6'
Rugs up to 6'6 x 10'
Rugs up to 6'6 x 10'
Rugs up to 8' x 11'
Rugs up to 8' x 11'
Oversized Rugs
Oversized Rugs
Round Rugs
Round Rugs
Runner Rugs
Runner Rugs
Washable Rugs
Washable Rugs
Shop All Rugs
Shop All Rugs
Lighting
Lamp Sets
Lamp Sets
Table Lamps
Table Lamps
Floor Lamps
Floor Lamps
Chandeliers
Chandeliers
Sconces
Sconces
Shop All Lighting
Shop All Lighting
Home Accents
Storage Solutions
Storage Solutions
Wall Decor
Wall Decor
Decorative Mirrors
Decorative Mirrors
Decorative Accents
Decorative Accents
Comforter Sets
Comforter Sets
Silk Florals
Silk Florals
Accent Pillows
Accent Pillows
Savings & Free Shipping
Living Room Essentials
Living Room Essentials
Dining Room Accents
Dining Room Accents
Bedroom Essentials
Bedroom Essentials
Rug Sale
Rug Sale
Kids Rugs & Décor
Kids Rugs & Décor
Nursery Sale
Nursery Sale
Shop All Decor
Shop All Decor
INSPIRATION
Shop By Style
View All Styles
View All Styles
Contemporary
Contemporary
Casual
Casual
Mid-Century Modern
Mid-Century Modern
Classic
Classic
Rustic
Rustic
Traditional
Traditional
Shop By Room
Kids
Kids
Teen
Teen
Nursery
Nursery
Study
Study
Gaming
Gaming
Shared Space
Shared Space
Brands
Brands
Design Ideas
View All Design Ideas
View All Design Ideas
Living Room
Living Room
Bedroom
Bedroom
Dining
Dining
Patio
Patio
Kids
Kids
Styles & Trends
Styles & Trends
Shop Small Spaces
Shop Small Spaces
Ambassador Program
Ambassador Program
SALES
Savings & Free Shipping
Living Room Essentials
Living Room Essentials
Dining Room Accents
Dining Room Accents
Bedroom Essentials
Bedroom Essentials
Rug Sale
Rug Sale
Kids Rugs & Décor
Kids Rugs & Décor
Nursery Sale
Nursery Sale
Last Chance Savings
Last Chance Living Room Savings
Last Chance Living Room Savings
Last Chance Bedroom Savings
Last Chance Bedroom Savings
Last Chance Kids Items Savings
Last Chance Kids Items Savings
Rooms To Go Outlet
Rooms To Go Outlet
(opens in new window)
FINANCING
Rooms To Go Credit
Apply
Apply
(opens in new window)
Account
Account
View All Payment Options
View All Payment Options
Other Ways To Pay
Affirm
Affirm
(opens in new window)
Acima
Acima
(opens in new window)
Klarna
Klarna
(opens in new window)
PayPal
PayPal
(opens in new window)
Apple Pay
Apple Pay
(opens in new window)

PRE-TARIFF PRICING ON ALL SALE ITEMS! Icon

PRE-TARIFF PRICING ON ALL SALE ITEMS!

55 MONTHS INTEREST FREE FINANCING* Icon

55 MONTHS INTEREST FREE FINANCING*

Find your furniture

Find your furniture

Welcome

Living Rooms

Dining Rooms

Bedrooms

Mattress

Patio

Kids & Teens

Rugs & Decor

Inspiration

Sales

Financing

Favorites My Store Cart Order Status Pay Order Balance

Home
Home
Mattress
Mattress
King
King
Firm King Mattresses

Loading...

for

Sort

Brand

Beautyrest Black

Posturepedic Elite

Posturepedic Plus

Serta Perfect Sleeper

Stearns And Foster

Tuft & Needle Stitch

Technology

Page1
Page2

Contact Us

Internet Assistance:
(888) 709-5380

All Other Inquiries:
(800) 766-6786

Call Center Hours:
Mon-Sat: 9am - 9pm EST
Sun: 11am - 7pm EST

Text Us:
Message ROOMS (76667)
Keyword SALES or CARE
Message and data rates may apply

Find a Showroom

Help Center

Request Service Online(opens in new window)(opens in new window)

Account

My Store Cart(opens in new window)(opens in new window)

Order Status(opens in new window)

Pay Order Balance

Financing

Make a Payment(opens in new window)(opens in new window)

Credit & Payment Options

Resources

Furniture Measuring Guide

Delivery Options

Investment Property Services

Creator Opportunities(opens in new window)(opens in new window)

Our Company

Rooms To Go Outlet(opens in new window)(opens in new window)

Community Support

Careers(opens in new window)(opens in new window)

RTG Mobile App

Sign Up

Enter your email and ZIP code to receive special offers and more!

Email Address

ZIP Code

ROOMS TO GOTop Rated Retailer

Follow UsFollow Rooms To Go on social media

(opens in new window)

(opens in new window)

(opens in new window)

(opens in new window)

(opens in new window)

Copyright © 2025 Rooms To Go. All Rights Reserved

(opens in new window)|

(opens in new window)|