Ultimate Upgrade SaleEnds Sunday. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product Search
Main Content
Skip to contentGo to Product Search

Ultimate Upgrade SaleEnds Sunday. Limited quantities. No rainchecks.Shop now

Main Content
Categories & Filters
Best Buy

/

furniture & decor

/

bedroom furniture

/

mattresses

Firm King Memory Foam Mattresses

Transform your sleep experience with firm king memory foam mattresses, designed to provide the support and comfort you need for restful nights. Perfect for those who prefer a sturdier feel, these mattresses offer ample space for stretching out while maintaining a solid foundation. Explore a variety of options to find the ideal fit for your bedroom and enjoy the benefits of quality materials and thoughtful construction. Discover how upgrading to a firm king memory foam mattress can enhance your nightly routine and help you wake up refreshed every morning.

Read More
Results
Main Results

  1. Dyonery - Extra Firm Memory Foam Mattress-King Size 14 Inch Cooling Green Tea Gel Foam, Removable Fiberglass-Free Cover - Gray

    SKU: JJGT9CHSS2

    Product Description

    An extra firm gray memory foam mattress with cooling green tea gel and a removable fiberglass-free cover.
    See all Mattresses
    Your price for this item is $368.00
    Save $55
    The previous price was $423.40

  2. Vipbear - Extra Firm Memory Foam Mattress Luxury Cooling Gel Green Tea Bed Mattresses 10 inch King - Black

    SKU: JJGT9CYVPL

    Product Description

    An extra firm king mattress with cooling gel, green tea memory foam, and a black ice silk cover.
    See all Mattresses
    Your price for this item is $400.00
    Save $1
    The previous price was $401.00

  3. Vipbear - 8 " King Size Extra Firm Memory Foam Mattresses with Tencel Cover, Premier Cooling Green Tea/Gel Bed Mattresses - White

    SKU: JJGT9CYK4T

    Product Description

    An extra firm memory foam mattress with a cooling green tea gel and a removable white Tencel cover.
    See all Mattresses
    Your price for this item is $259.99

  4. Vipbear - 12 " King Size Extra Firm Mattress with Ice Silk Cover, Cool Green Tea/Gel Memory Foam Mattress in Box - White

    SKU: JJGT9CYK6K

    Product Description

    An extra firm king mattress with a cool ice silk cover and green tea gel memory foam in white.
    See all Mattresses
    Your price for this item is $399.99

  5. Best Choice Products - 12in King Size 3-Layer Medium-Plush Charcoal Gel & Tea Infused Memory Foam Mattress - Green

    SKU: J36CWZ3HTZ

    Product Description

    A green medium-plush memory foam mattress with charcoal gel and green tea infusion for cool, fresh sleep.
    See all Mattresses
    Your price for this item is $249.99

  6. Dyonery - 3" Firm to Extra Firm Memory Foam Mattress Topper Supportive Mattress Pad for Back Pain Relief, with Senior Grey Cover - Gray

    SKU: JJGT9CR5QF

    Product Description

    A firm gray memory foam topper with a supportive design ideal for back pain relief and stability.
    See all Mattress Toppers & Pads
    Your price for this item is $67.99

  7. Emma + Oliver - 10" Mattress & Gel Memory Foam Topper Bundle Set - White/Blue

    SKU: J3ZHF8JPHZ

    Product Description

    A hypoallergenic white and blue king mattress bundle with cooling gel memory foam topper and pocket springs.
    See all Mattresses
    Your price for this item is $592.99

  8. Vipbear - Gel Memory Foam Mattress Topper 3 Inch King Size High-Density Mattress Pad - White

    SKU: JJGT9CP2KX

    Product Description

    A high-density, firm white gel memory foam topper that enhances comfort and support for king-size beds.
    See all Mattresses
    Your price for this item is $105.00

  9. Dyonery - 4 " King Size Firm Cooling Mattress Topper, Memory Foam Mattress Topper for Back Pain Relief, with Removable Cover - White

    SKU: JJGT9CTQSK

    Product Description

    A white memory foam topper with cooling gel and removable cover that promotes airflow for comfortable sleep.
    See all Mattress Toppers & Pads
    Your price for this item is $119.99

  10. Vipbear - 10 Inch Short King RV Mattress,Gel Green Tea Memory Foam Mattress for RVs,Campers & Trailers - White

    SKU: JJGT9CP2Z8

    Product Description

    A medium to firm white memory foam mattress infused with gel green tea, ideal for RVs and campers.
    See all Mattresses
    Your price for this item is $220.00
1-18 of 176 items
0 items

Best Sellers

Related Pages

Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada
AccessibilityTerms & ConditionsPrivacyInterest-Based AdsState Privacy RightsHealth Data PrivacyDo Not Sell/Share My Personal InformationLimit Use of My Sensitive Personal InformationTargeted Advertising Opt OutCA Supply Chain Transparency Act
In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.
Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada

In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.