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Soft Mattress Topper King

A mattress topper is a thin layer of foam or gel that is placed on top of a mattress to make it softer and more comfortable. A mattress topper can be used for people who have trouble sleeping on hard surfaces, such as those with back problems or who are recovering from surgery. It can also be used as an extra layer of protection for a bed that is frequently used by children or pets. Browse the top-ranked list of soft King mattress toppers below along with associated reviews and opinions.

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  1. Bestier - 4 Inch 5-Zone Memory Foam Mattress Topper, Gel Infused Foam Mattress Topper for Pressure Relief Bed Topper - King

    SKU: J39TG4JLTW

    Product Description

    A gel-infused, black memory foam topper with 5-zone support and cooling airflow channels for pressure relief.
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    Your price for this item is $118.99
    Save $81
    The previous price was $199.99

  2. Deco Home - 3-Inch King Memory Foam Mattress Topper with Infused Lavender Scent, Ventilated MTKNG02 - Light Purple

    SKU: J39HXTV72T

    Product Description

    An extra soft, ventilated light purple memory foam topper infused with calming lavender scent for king beds.
    See all Mattress Toppers & Pads
    Your price for this item is $101.99
    Save $78
    The previous price was $179.99

  3. Bestier - 3 Inch Egg Crate Memory Foam Mattress Topper, Cooling Gel Infused Foam Mattress Topper for Pressure Relief Bed Topper - King

    SKU: J39TG4JLZK

    Product Description

    An egg crate memory foam topper with cooling gel and lavender scent for pressure relief and restful sleep.
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    Your price for this item is $91.99
    Save $58
    The previous price was $149.99

  4. Bestier - 2" Cooling Gel Memory Foam Mattress Topper - King

    SKU: J39TG4JLYP

    Product Description

    A white gel-infused memory foam topper with ventilated holes offers cooling comfort and pressure relief.
    See all Mattresses
    Your price for this item is $77.28

  5. Bestier - 4" Cooling Gel Memory Foam Mattress Topper - King

    SKU: J39TG4JL94

    Product Description

    A gel-infused memory foam topper with ventilated holes offers cooling comfort and pressure relief for restful sleep.
    See all Mattresses
    Your price for this item is $120.99
    Save $19
    The previous price was $139.99

  6. Bestier - 4 Inch Egg Crate Memory Foam Mattress Topper, Cooling Gel Infused Foam Mattress Topper for Pressure Relief Bed Topper - King

    SKU: J39TG4JL58

    Product Description

    An egg crate memory foam topper with cooling gel and lavender scent for pressure relief and calming sleep.
    See all Mattresses
    Your price for this item is $108.99
    Save $83
    The previous price was $191.99

  7. Sealy - Dreamlife 3” Gel Memory Foam Mattress Topper + 1” Quilted Cooling Cover, King - Blue

    SKU: J3GWLTCJ5V

    Product Description

    A blue gel memory foam topper with a quilted cooling cover offers pressure relief and enhanced comfort.
    See all Mattress Toppers & Pads
    Your price for this item is $320.00

  8. Sealy - Dreamlife 3” Gel Memory Foam Mattress Topper + 1” Quilted Cooling Cover, CA King - Blue

    SKU: J3GWLTCJF8

    Product Description

    A blue gel memory foam topper with a quilted cooling cover offers pressure relief and allergen protection.
    See all Mattress Toppers & Pads
    Your price for this item is $320.00

  9. Sealy - Dreamlife 2” Gel Memory Foam Mattress Topper with Cooling Cover, CA King - Blue

    SKU: J3GWLTCJWW

    Product Description

    A blue gel memory foam topper with a cooling, washable cover for personalized comfort and pressure relief.
    See all Mattress Toppers & Pads
    Your price for this item is $270.00

  10. Sealy - Dreamlife 2” Gel Memory Foam Mattress Topper with Cooling Cover, King - Blue

    SKU: J3GWLTCJWJ

    Product Description

    A blue gel memory foam topper with a cooling, washable cover for personalized comfort and pressure relief.
    See all Mattress Toppers & Pads
    Your price for this item is $270.00
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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.