Shop best extra firm king mattress

Sponsored
$999.99
Beautyrest King Mattress | Innerspring | Medium BRS900 Firm
Mattress Firm
Affordable · Optimal Firmness · Superior Quality · Superior Sleep Quality
$999.99
Beautyrest King Mattress | Innerspring | Medium BRS900 Firm
Mattress Firm
Affordable · Optimal Firmness · Superior Quality · Superior Sleep Quality
$399.99
$999.99
Beautyrest Queen Mattress | Innerspring | Firm Greenwood
Mattress Firm
More than 2K people from Bing viewed this product in the last 90 days
60% off
$399.99
$999.99
Beautyrest Queen Mattress | Innerspring | Firm Greenwood
Mattress Firm
2K+ viewed
$635.99
$1,399.99
Beautyrest King Mattress | Eurotop Innerspring | Plush BR800
Mattress Firm
Memory Foam · Superior Quality · Ultra Comfortable
54% off
$635.99
$1,399.99
Beautyrest King Mattress | Eurotop Innerspring | Plush BR800
Mattress Firm
Memory Foam · Superior Quality · Ultra Comfortable
$1,699.99
Beautyrest King Mattress | Innerspring | Extra Firm BRS900
Mattress Firm
Affordable · Memory Foam · Optimal Firmness · Superior Quality · Superior Sleep Quality
$1,699.99
Beautyrest King Mattress | Innerspring | Extra Firm BRS900
Mattress Firm
Affordable · Memory Foam · Optimal Firmness · Superior Quality · Superior Sleep Quality
$399.99
$999.99
Sealy Cal King Mattress | Innerspring | Firm Essentials S3 Sudley
Mattress Firm
In store
60% off
$399.99
$999.99
Sealy Cal King Mattress | Innerspring | Firm Essentials S3 Sudley
Mattress Firm
$999.00
Serta Perfect Sleeper Nurture Night 12" Firm Mattress | King
Mattress Firm
477
$999.00
Serta Perfect Sleeper Nurture Night 12" Firm Mattress | King
Mattress Firm
477
$1,049.99
$1,399.00
Serta Perfect Sleeper Oasis Sleep 12" Extra Firm Mattress | King
Mattress Firm
473
24% off
$1,049.99
$1,399.00
Serta Perfect Sleeper Oasis Sleep 12" Extra Firm Mattress | King
Mattress Firm
473
$874.99
$1,999.99
Beautyrest King Mattress | Innerspring | Extra Firm BRS900-C
Mattress Firm
350
56% off
$874.99
$1,999.99
Beautyrest King Mattress | Innerspring | Extra Firm BRS900-C
Mattress Firm
350
$558.99
$1,299.99
Beautyrest King Mattress | Innerspring | Medium BR800
Mattress Firm
75
57% off
$558.99
$1,299.99
Beautyrest King Mattress | Innerspring | Medium BR800
Mattress Firm
75
$799.99
Tulo Green Tea Hybrid 8" Firm Mattress | King
Mattress Firm
$799.99
Tulo Green Tea Hybrid 8" Firm Mattress | King
Mattress Firm
$519.99
$1,299.99
Beautyrest King Mattress | Innerspring | Firm Greenwood
Mattress Firm
More than 1.4K people from Bing viewed this product in the last 90 days
60% off
$519.99
$1,299.99
Beautyrest King Mattress | Innerspring | Firm Greenwood
Mattress Firm
1.4K+ viewed
$2,399.00
$2,599.00
Beautyrest Black Series One 13.5" Extra Firm Mattress | King
Mattress Firm
$2,399.00
$2,599.00
Beautyrest Black Series One 13.5" Extra Firm Mattress | King
Mattress Firm
$1,199.99
Serta Perfect Sleeper Elkins III 10" Firm Mattress | King
Mattress Firm
$1,199.99
Serta Perfect Sleeper Elkins III 10" Firm Mattress | King
Mattress Firm
$1,049.99
$1,399.00
Serta Perfect Sleeper Pacific Peace 12" Hybrid Firm Mattress | King
Mattress Firm
124
24% off
$1,049.99
$1,399.00
Serta Perfect Sleeper Pacific Peace 12" Hybrid Firm Mattress | King
Mattress Firm
124
$1,999.99
Serta Perfect Sleeper Sleep Excellence Extra Firm Mattress | King
Mattress Firm
$1,999.99
Serta Perfect Sleeper Sleep Excellence Extra Firm Mattress | King
Mattress Firm
$667.00
$1,659.00
Closeout! Serta Classic 13" Elite Extra Firm Mattress- Queen
Macy's
59% off
$667.00
$1,659.00
Closeout! Serta Classic 13" Elite Extra Firm Mattress- Queen
Macy's
$699.77
$1,399.00
Sealy Posturepedic Hybrid Lacey 13" Firm Mattress | King
Mattress Firm
1K+
49% off
$699.77
$1,399.00
Sealy Posturepedic Hybrid Lacey 13" Firm Mattress | King
Mattress Firm
1K+
$874.99
$1,999.99
Beautyrest King Mattress | Innerspring | Medium BRS900-C
Mattress Firm
56% off
$874.99
$1,999.99
Beautyrest King Mattress | Innerspring | Medium BRS900-C
Mattress Firm
$419.99
$449.99
Full Extra Firm 14" Innerspring Mattress - Zinus 75.0 H X 54.0 W 14.0 D, Microfiber | Wayfair
Wayfair
214
$419.99
$449.99
Full Extra Firm 14" Innerspring Mattress - Zinus 75.0 H X 54.0 W 14.0 D, Microfiber | Wayfair
Wayfair
214
$692.44
$780.26
Ashley Ultra Luxury Firm Tight Top With Memory Foam White Mattress
1 Stop Bedrooms
$10 Off*
11% off
$692.44
$780.26
Ashley Ultra Luxury Firm Tight Top With Memory Foam White Mattress
1 Stop Bedrooms
$10 Off*
$699.00
$749.00
Twin XL Size Adjustable Bed Base | Massage, Wireless Remote Control, Independent Head And Foot Incline, Zero Gravity Setting
Nectar Sleep
$699.00
$749.00
Twin XL Size Adjustable Bed Base | Massage, Wireless Remote Control, Independent Head And Foot Incline, Zero Gravity Setting
Nectar Sleep
$575.99
$1,199.99
Serta Perfect Sleeper Elkins III 11" Plush Euro Top Mattress | King
Mattress Firm
52% off
$575.99
$1,199.99
Serta Perfect Sleeper Elkins III 11" Plush Euro Top Mattress | King
Mattress Firm
$849.00
$1,399.00
Nectar Classic 12" Firm Memory Foam Mattress | King
Mattress Firm
21
39% off
$849.00
$1,399.00
Nectar Classic 12" Firm Memory Foam Mattress | King
Mattress Firm
21
$719.99
$1,199.99
Serta Classic Blissville 12.5" Firm Mattress | King
Mattress Firm
40% off
$719.99
$1,199.99
Serta Classic Blissville 12.5" Firm Mattress | King
Mattress Firm
$584.99
$1,299.99
Beautyrest King Mattress | Innerspring | Firm BR800
Mattress Firm
More than 530 people from Bing viewed this product in the last 90 days
55% off
$584.99
$1,299.99
Beautyrest King Mattress | Innerspring | Firm BR800
Mattress Firm
530+ viewed
$799.77
$1,999.99
Sealy King Mattress | Eurotop Innerspring | Medium Posturepedic Plus S3 Satisfied II
Mattress Firm
Affordable · Sealy · Superior Support · Ultra Comfortable
60% off
$799.77
$1,999.99
Sealy King Mattress | Eurotop Innerspring | Medium Posturepedic Plus S3 Satisfied II
Mattress Firm
Affordable · Sealy · Superior Support · Ultra Comfortable
$849.00
$899.00
King Size Mattress By Nectar Mattress | Compare The Nectar 2025 Affordable Memory Foam Bed In A Box Sale
Nectar Sleep
3K+
$849.00
$899.00
King Size Mattress By Nectar Mattress | Compare The Nectar 2025 Affordable Memory Foam Bed In A Box Sale
Nectar Sleep
3K+
$799.99
Sleepy's King Mattress | Euro Top | Medium 10.5"
Mattress Firm
In store
$799.99
Sleepy's King Mattress | Euro Top | Medium 10.5"
Mattress Firm
$249.99
Sleepy's King Mattress | Innerspring | Firm Basic
Mattress Firm
In store
$249.99
Sleepy's King Mattress | Innerspring | Firm Basic
Mattress Firm
$699.00
$749.00
Adjustable Full Size Bed Frame By Nectar | Massage, Wireless Remote Control, Independent Head And Foot Incline, Zero Gravity Setting
Nectar Sleep
72
$699.00
$749.00
Adjustable Full Size Bed Frame By Nectar | Massage, Wireless Remote Control, Independent Head And Foot Incline, Zero Gravity Setting
Nectar Sleep
72
$3,899.00
Stearns & Foster Lux Estate Firm Pillowtop Mattress - CA King
Stearns & Foster
311
$3,899.00
Stearns & Foster Lux Estate Firm Pillowtop Mattress - CA King
Stearns & Foster
311
$898.99
Beautyrest Silver BRS900-C 14-Inch Extra Firm Innerspring Mattress - King
Bed Bath & Beyond
20
24% off
$898.99
Beautyrest Silver BRS900-C 14-Inch Extra Firm Innerspring Mattress - King
Bed Bath & Beyond
20
$622.49
$829.99
Serta Perfect Sleeper Oasis Sleep 12" Extra Firm Mattress - King
Bed Bath & Beyond
473
25% off
$622.49
$829.99
Serta Perfect Sleeper Oasis Sleep 12" Extra Firm Mattress - King
Bed Bath & Beyond
473
$739.63
$901.99
Beautyrest Silver BRS900-C 14-Inch Extra Firm Innerspring Mattress Set - King - Low Profile
Bed Bath & Beyond
20
18% off
$739.63
$901.99
Beautyrest Silver BRS900-C 14-Inch Extra Firm Innerspring Mattress Set - King - Low Profile
Bed Bath & Beyond
20
$3,199.00
Stearns & Foster Estate Firm Pillowtop Mattress - King
Stearns & Foster
90-day returns (most items)
$3,199.00
Stearns & Foster Estate Firm Pillowtop Mattress - King
Stearns & Foster
90-day returns
$849.99
King Extra Firm 13" Innerspring Mattress - Serta Clarks Hill 80.0 H X 76.0 W 13.0 D | Wayfair
Wayfair
29
27% off
$849.99
King Extra Firm 13" Innerspring Mattress - Serta Clarks Hill 80.0 H X 76.0 W 13.0 D | Wayfair
Wayfair
29
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    Shop best extra firm king mattress

    Sponsored
    $999.99
    Beautyrest King Mattress | Innerspring | Medium BRS900 Firm
    Mattress Firm
    Affordable · Optimal Firmness · Superior Quality · Superior Sleep Quality
    $999.99
    Beautyrest King Mattress | Innerspring | Medium BRS900 Firm
    Mattress Firm
    Affordable · Optimal Firmness · Superior Quality · Superior Sleep Quality
    $399.99
    $999.99
    Beautyrest Queen Mattress | Innerspring | Firm Greenwood
    Mattress Firm
    More than 2K people from Bing viewed this product in the last 90 days
    60% off
    $399.99
    $999.99
    Beautyrest Queen Mattress | Innerspring | Firm Greenwood
    Mattress Firm
    2K+ viewed
    $635.99
    $1,399.99
    Beautyrest King Mattress | Eurotop Innerspring | Plush BR800
    Mattress Firm
    Memory Foam · Superior Quality · Ultra Comfortable
    54% off
    $635.99
    $1,399.99
    Beautyrest King Mattress | Eurotop Innerspring | Plush BR800
    Mattress Firm
    Memory Foam · Superior Quality · Ultra Comfortable
    $1,699.99
    Beautyrest King Mattress | Innerspring | Extra Firm BRS900
    Mattress Firm
    Affordable · Memory Foam · Optimal Firmness · Superior Quality · Superior Sleep Quality
    $1,699.99
    Beautyrest King Mattress | Innerspring | Extra Firm BRS900
    Mattress Firm
    Affordable · Memory Foam · Optimal Firmness · Superior Quality · Superior Sleep Quality
    $399.99
    $999.99
    Sealy Cal King Mattress | Innerspring | Firm Essentials S3 Sudley
    Mattress Firm
    In store
    60% off
    $399.99
    $999.99
    Sealy Cal King Mattress | Innerspring | Firm Essentials S3 Sudley
    Mattress Firm
    $999.00
    Serta Perfect Sleeper Nurture Night 12" Firm Mattress | King
    Mattress Firm
    477
    $999.00
    Serta Perfect Sleeper Nurture Night 12" Firm Mattress | King
    Mattress Firm
    477
    $1,049.99
    $1,399.00
    Serta Perfect Sleeper Oasis Sleep 12" Extra Firm Mattress | King
    Mattress Firm
    473
    24% off
    $1,049.99
    $1,399.00
    Serta Perfect Sleeper Oasis Sleep 12" Extra Firm Mattress | King
    Mattress Firm
    473
    $874.99
    $1,999.99
    Beautyrest King Mattress | Innerspring | Extra Firm BRS900-C
    Mattress Firm
    350
    56% off
    $874.99
    $1,999.99
    Beautyrest King Mattress | Innerspring | Extra Firm BRS900-C
    Mattress Firm
    350
    $558.99
    $1,299.99
    Beautyrest King Mattress | Innerspring | Medium BR800
    Mattress Firm
    75
    More than 960 people from Bing viewed this product in the last 90 days
    57% off
    $558.99
    $1,299.99
    Beautyrest King Mattress | Innerspring | Medium BR800
    Mattress Firm
    75
    $799.99
    Tulo Green Tea Hybrid 8" Firm Mattress | King
    Mattress Firm
    $799.99
    Tulo Green Tea Hybrid 8" Firm Mattress | King
    Mattress Firm
    $519.99
    $1,299.99
    Beautyrest King Mattress | Innerspring | Firm Greenwood
    Mattress Firm
    More than 1.4K people from Bing viewed this product in the last 90 days
    60% off
    $519.99
    $1,299.99
    Beautyrest King Mattress | Innerspring | Firm Greenwood
    Mattress Firm
    1.4K+ viewed
    $2,399.00
    $2,599.00
    Beautyrest Black Series One 13.5" Extra Firm Mattress | King
    Mattress Firm
    $2,399.00
    $2,599.00
    Beautyrest Black Series One 13.5" Extra Firm Mattress | King
    Mattress Firm
    $1,199.99
    Serta Perfect Sleeper Elkins III 10" Firm Mattress | King
    Mattress Firm
    $1,199.99
    Serta Perfect Sleeper Elkins III 10" Firm Mattress | King
    Mattress Firm
    $1,049.99
    $1,399.00
    Serta Perfect Sleeper Pacific Peace 12" Hybrid Firm Mattress | King
    Mattress Firm
    124
    24% off
    $1,049.99
    $1,399.00
    Serta Perfect Sleeper Pacific Peace 12" Hybrid Firm Mattress | King
    Mattress Firm
    124
    $1,999.99
    Serta Perfect Sleeper Sleep Excellence Extra Firm Mattress | King
    Mattress Firm
    $1,999.99
    Serta Perfect Sleeper Sleep Excellence Extra Firm Mattress | King
    Mattress Firm
    $667.00
    $1,659.00
    Closeout! Serta Classic 13" Elite Extra Firm Mattress- Queen
    Macy's
    59% off
    $667.00
    $1,659.00
    Closeout! Serta Classic 13" Elite Extra Firm Mattress- Queen
    Macy's
    $699.77
    $1,399.00
    Sealy Posturepedic Hybrid Lacey 13" Firm Mattress | King
    Mattress Firm
    1K+
    49% off
    $699.77
    $1,399.00
    Sealy Posturepedic Hybrid Lacey 13" Firm Mattress | King
    Mattress Firm
    1K+
    $874.99
    $1,999.99
    Beautyrest King Mattress | Innerspring | Medium BRS900-C
    Mattress Firm
    56% off
    $874.99
    $1,999.99
    Beautyrest King Mattress | Innerspring | Medium BRS900-C
    Mattress Firm