Tempur-Pedic TEMPUR-Adapt + Cooling 3-Inch King Mattress Topper Medium Luxury Premium Foam
- Mattress Topper
- White
- Tempur Material Memory Foam
- Memory Foam
A pressure-relieving topper reviewers credit with rescuing an overly firm mattress, though a few ran into pushback on warranty claims after years of normal wear.
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How it ranks among the 18 mattress toppers we track
4.1★ across 12,400 Amazon ratings, Bayesian-smoothed toward the category average.
12,400 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
800+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 18 mattress toppers we track - how the scorecard works · full mattress toppers data report. Confidence: high - strong rating volume and complete data.Updated 6 days ago. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
A 3-inch memory foam topper sized 79 by 75 inches for a king mattress, built to soften a too-firm mattress and ease pressure at the hips and shoulders. Tempur-Pedic markets it as a medium-firm cooling layer with a washable cover.
Most of the reviews here describe the same starting point: a firm hybrid or innerspring mattress that reviewers liked in the showroom but found too hard to sleep on night after night, and this topper as the fix rather than replacing the mattress itself. That framing matters because it is a comfort layer riding on top of an existing mattress, not a mattress replacement, and its effect depends heavily on how firm that base mattress already is.
- 3-inch memory foam, sized for a king mattress
- Marketed as a cooling, medium-firm layer
- Washable cover
- Meant to sit over an existing mattress, not replace it
Who it's for
Side sleepers and anyone with hip or shoulder pain on a mattress that is firmer than they would like, especially owners of firm hybrid or innerspring beds. Not the right buy for someone whose mattress is already soft, or who wants a thicker topper than 3 inches.
What buyers say
From Amazon customer reviews.
The recurring theme is relief from a mattress that felt too firm once it was actually slept on, with several reviewers specifically noting less hip and shoulder pressure as side sleepers. Long-term owners report it holding up well after multiple years of nightly use. On the negative side, the corner straps that hold it in place drew criticism as poorly designed, one buyer described a warranty claim being denied over cosmetic stains after years of normal use, and a few questioned whether the comfort gain justifies the price.
Strengths and trade-offs
Drawn from this product's published specifications.
- Corner straps criticized as an awkward attachment method
- One buyer denied a warranty claim over normal-wear stains
- Some call the price high relative to the improvement
Performance notes
The 3-inch foam layer sits on top of the mattress and softens the surface a sleeper's body actually contacts, which is why reviewers moving from firm hybrid or innerspring beds report the biggest change in pressure on hips and shoulders. Several describe it settling in fully only after the topper has had a day to expand once unpacked. It stays attached with corner straps, which more than one reviewer found workable but not elegant.
Specifications
| Brand | Tempur-Pedic |
|---|---|
| Model | 11386170 |
| Dimensions & fit | |
| Size | King |
| Capacity & performance | |
| Age Range Description | Adult |
| Construction & materials | |
| Fabric Type | Tempur Material Memory Foam |
| Material Type | Memory Foam |
| Color | White |
| Included components | |
| Number of Packs | 1 |
| Unit Count | 1 |
| Included Components | Staytight corner straps |
| Other details | |
| Closure Type | White |
| Number of Items | 1 |
| Other Special Features of the Product | Premium |
| Product Care Instructions | Machine Wash |
| Water Resistance Level | Not Water Resistant |
| Item Firmness Description | Medium Firm |
| Item Type Name | Soft Luxury Premium Foam, Washable Cover |
How it compares
This product against the closest alternatives we track in mattress toppers.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Tempur-Pedic TEMPUR-Adapt + Cooling 3-Inch King Mattress Topper Medium Luxury Premium FoamThis product | 4.1 / 5 | 12,400 | 4.4 / 5 |
| Linenspa Memory Foam Mattress TopperLinenspa | 4.5 / 5 | 74,828 | 4.7 / 5 |
| SINWEEK 2 Inch Gel Memory Foam Mattress Topper Ventilated Soft Pressure Relieve Mattress…Sinweek | 4.5 / 5 | 5,558 | 4.5 / 5 |
| Niagara Sleep Solution Queen Ultra Soft Mattress TopperNiagara Sleep Solution | 4.3 / 5 | 58,994 | 4.4 / 5 |
| COONP Queen Mattress TopperCoonp | 4.4 / 5 | 34,792 | 4.5 / 5 |
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Questions about the Tempur-Pedic 11386170
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Will the TEMPUR-Adapt Cooling topper fix a mattress that feels too firm?
Reviewers who moved from firm hybrid or innerspring mattresses report a real softening effect and less pressure on hips and shoulders as side sleepers.
What size is this Tempur-Pedic topper?
It is a 3-inch-thick topper measuring 79 by 75 inches, sized for a king mattress.
How does the topper stay in place on the mattress?
It uses corner straps to hold it to the mattress; some reviewers found the strap design workable but not ideal.