King Mattress Toppers

76x80 inches

Viscosoft’s King mattress toppers are constructed with high-quality materials and are Certipur-US certified to deliver hotel-quality comfort.

Free shipping, easy returns & a 90-day guarantee.

King - 76 x 80 inches
King - 76 x 80 inches
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King toppers add more comfort

  • Expensive mistake
    Piggy bank icon
    Piggy bank icon

    Bought a pricey mattress and decided you don’t actually like the feel, but it’s too late to return it?

  • Motion Transfer
    Wineglass icon
    Wineglass icon

    Tired of feeling your partner toss and turn all night and waking you up? Need some motion isolation?

  • Overheating
    Snowflake icon
    Snowflake icon

    Do your kids crawl into bed with you in the middle night, causing you to overheat? Need something cooling?

Orders placed by 2pm ships sam day. Responsive support.  Photo of a light blue mattress topper on top of a bed.
$99.95

Reflex - King - 2 Inch

Orders placed by 2pm ships sam day. Responsive support.  Photo of a light blue mattress topper on top of a bed.
$134.95

Reflex - King - 3 Inch

Orders placed by 2pm ships same day. 3" High Density Foam. Photo of a 3" thick white & blue mattress topper secured to a bed with adjustable straps.
$199.95

High Density - King - 3 Inch

Orders placed by 2pm ships same day. 4" High Density Foam. Photo of a 3" thick white & blue mattress topper secured to a bed with adjustable straps.
$299.95

High Density - King - 4 Inch

Orders placed by 2pm ships same day. Dual Layer Memory Foam + Pillow Top. Photo of a dual layer white mattress topper secured to a bed with an 18" deep pocket skirt.
$249.95

Serene Hybrid - King - 4 Inch

Serene Hybrid Mattress Topper now available in 3 inch and 4 in thickness
$219.95

Serene Hybrid - King - 3 Inch

Orders placed by 2pm ships same day. 4" Copper Infused Foam. Made in the USA. Photo of a 4" thick white mattress topper secured to a bed with adjustable straps.
$349.95

Active Cooling - King - Ivory

Photo of the black cooling cover unzipped and pulled back exposing the dual layered, copper infused foam of the mattress topper.
$349.95

Active Cooling - King - Black

Our King Best Sellers

  • Select High Density
    Best for extra support. Photo of a thick white and blue topper fitted to a mattress with white elastic adjustable straps.
    Best for extra support. Photo of a thick white and blue topper fitted to a mattress with white elastic adjustable straps.

    Our King high-density memory foam mattress topper is more durable than comparable foams, feels plush & pushes back with resilient support after your body settles.

  • Serene Hybrid
    Best for plush comfort. Photo of a plush quilted white mattress topper fitted to a mattress with a full elastic skirt.
    Best for plush comfort. Photo of a plush quilted white mattress topper fitted to a mattress with a full elastic skirt.

    The best of both worlds. This King mattress topper balances the support of memory foam with the plush comfort of a down alternative pillow top cover.

  • Active Cooling
    Best for cooling relief. Photo of a thick white mattress topper with black elastic adjustable straps.
    Best for cooling relief. Photo of a thick white mattress topper with black elastic adjustable straps.

    This King mattress topper is built with copper-infused foam & a cover made with phase-changing yarns to help you sleep cool throughout the night.

The King Mattress Topper

Save money with a King

It’s no secret that King size mattresses are pretty pricey, so it makes sense to want to keep it for as long as possible. The budget friendly solution to extending the life of a King size mattress? A King size mattress topper.

A King size mattress topper will not only protect your investment and give it an additional layer of comfort, but it can also extend the lifespan of your mattress. 

Woman sleeping on her side on a thick white mattress topper
Woman sleeping on her side on a thick white mattress topper
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Wide variety of toppers

We've got something for everybody

We have a wide selection of King sized mattress toppers, including high-density memory foam for pain relief, dual-layered pillow-top & memory foam for plush comfort, and copper-infused foam for cooling relief.

All of our King mattress toppers have a 90-day guarantee, fast & free shipping, and hassle-free returns.

Woman pressing into the memory foam of a thick white and blue mattress topper
Woman pressing into the memory foam of a thick white and blue mattress topper
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Not the size you need?

  • Our mattress toppers are also available in the following sizes: