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Tempur-Pedic TEMPUR-Adapt + Cooling 3-Inch California King Mattress Topper1 / 7
Product guide

Tempur-Pedic TEMPUR-Adapt + Cooling 3-Inch California King Mattress Topper

The Tempur-Pedic TEMPUR-Adapt + Cooling Mattress Topper adds a 3-inch memory-foam layer and a removable, washable cooling cover to a California King mattress. Its foam is described as adapting to body shape and weight, though customer feedback is mixed on firmness, fit, and how cool it feels.

At a glance

  • The manufacturer describes the foam as adapting to body shape, weight, and temperature, with pressure-relieving comfort and support.
  • The removable cover is described as cool-to-the-touch and washable. Follow care instructions for the cover only, not the foam core.
  • The listing says the California King topper measures 83.5 x 71.7 x 2.9, while the title describes it as 3 inches thick.
  • The manufacturer presents it for home or travel use, including dorm rooms, camping, recreational vehicles, and overnight guests.
Price
$349.00Save 31%

Reference price: $509.00

Price checked: Nov 14, 2026

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Often bought together

Pros and cons

Pros

  • A 3-inch memory-foam layer can add cushioning to an existing mattress without replacing it.
  • The cover can be removed and washed, providing a practical cleaning option for the topper surface.
  • Its California King sizing is specified, making it relevant for shoppers seeking that mattress size.

Cons

  • The topper is listed as not water resistant, so it is not described as protection against spills.
  • The foam core cannot be washed or dry cleaned, unlike the removable cover.

Technical specifications

11 specifications
Identity and size
BrandTempur-Pedic
ModelMattress Topper
SizeCalifornia King
Listed dimensions83.5 x 71.7 x 2.9
Materials and features
Material listedMemory Foam
Foam material3-inches of exclusive TEMPUR-ES Material
Cooling featureAllergen Barrier, Cooling
ColorWhite
Firmness descriptionMedium Firm
Water resistance listedNot Water Resistant
CoverPremium knit cooling cover provides cool-to-the-touch comfort after every wash. Breathable, high-stretch performance fabric.

What to know before buying

Listing details to confirm

Listing details are inconsistent on thickness, with the title and feature copy calling it 3 inches while the stated dimensions give a 2.9-inch height. Firmness is described as both medium and medium firm, and the details list age range Child despite the California King mattress-topper sizing. Confirm the selected listing's configuration and measurements before buying. The stated care instructions say to wash the cover in cold water, avoid chlorine products and harsh stain removers, and air dry or use a cool dryer setting. Do not wash or dry clean the foam core. Customer feedback is mixed on softness, fit, value, and cooling, so those experiences may differ from the listing's cooling claims.

What’s in the box

Included
  • Tools

Who is it for?

A good fit for

  • California King owners who want to add a memory-foam layer to an existing mattress.
  • Shoppers who value a removable, washable cover and are comfortable keeping the foam core unwashed.
  • People considering a topper for a dorm, RV, camping setup, or overnight guests, as described by the manufacturer.

Less suited to

  • Anyone seeking a water-resistant topper or a foam core that can be washed.
  • Buyers who need consistently firm softness, precise fit, or reliably cooler sleep, given mixed customer feedback on those experiences.
Tempur-Pedic TEMPUR-Adapt + Cooling 3-Inch California King Mattress Topper · photo 2
Additional product photo 2

Customer reviews on Amazon

4.1 / 5 · 12,532 ratings
  • 5 stars64%64%
  • 4 stars12%12%
  • 3 stars8%8%
  • 2 stars5%5%
  • 1 star11%11%

Customer feedback is broadly favorable about comfort, pain relief, sleep quality, and perceived support, while opinions are divided on softness, fit, value, and cooling. For shoppers considering the listed 3-inch memory-foam layer and cooling cover, those differences matter: the cover's stated cooling design does not guarantee a cool feel for every sleeper, and fit experiences may vary. Aggregate ratings are generally positive but include a meaningful spread across rating levels, so they do not establish that the topper will suit every buyer.

Positive themes

  • Customers report comfort, pain relief, and improved sleep quality.

Mixed feedback

  • Feedback differs on whether the feel is too squishy or suitably supportive.
  • Some customers report fit concerns, while others are pleased with the fit.
  • Cooling and value perceptions are divided.

Frequently asked questions

What size is this Tempur-Pedic topper?

The listing specifies California King and dimensions of 83.5 x 71.7 x 2.9. Its title and feature copy call it 3 inches thick, so the listed height is not an exact match.

Can the topper be washed?

The cover is removable and washable in cold water. The listing says not to wash or dry clean the TEMPUR-Material core.

Is the topper water resistant?

No. The product details explicitly list it as not water resistant.

Does it sleep cool?

The cover and product are described as cooling, but customer feedback is mixed, with some finding it cool and others finding it too warm.

Tempur-Pedic TEMPUR-Adapt + Cooling 3-Inch California King Mattress Topper · photo 3
Additional product photo 3

Alternative options

Product details in Markdown