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Deal.ai › Serta › Mattresses
Serta
Serta 12-in Firm California King Cooling Mattress

Serta 12-in Firm California King Cooling Mattress

Best price now

$798.24at Lowe'sChecked Nov 9

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Price facts

  • Last seen at $798.24 at Lowe's on Nov 9.

Our take on the Serta 12-in Firm California King Cooling Mattress

This is a 12-inch firm mattress from Serta in the California King size, built with memory foam over a support core. The firm feel and cooling cover suit back and stomach sleepers who run warm and want a stable, low-sink surface. It is a straightforward boxed-style foam bed rather than a hybrid, so it lacks the springs and edge support of Serta's pricier lines. Shoppers comparing it to other 12-inch foam mattresses get a recognizable brand name and a firm, supportive feel, but should expect less bounce and a longer break-in than an innerspring.

Best forBack and stomach sleepers who want firm supportHot sleepers looking for a cooling coverCouples who prefer a low-motion-transfer foam bedGuest rooms and spare bedrooms in California King frames
Pros
  • Firm surface keeps the spine aligned for back and stomach sleepers
  • Memory foam limits motion transfer between partners
  • Cooling cover targets heat buildup
  • 12-inch profile fits standard sheets and deep-pocket bedding
  • Serta brand backing and warranty support
Cons
  • Firm feel can be too hard for side sleepers and light bodies
  • All-foam build gives weaker edge support than a hybrid
  • May sleep warmer than gel-infused or hybrid rivals
  • Needs time to expand and off-gas after unboxing

Serta 12-in Firm California King Cooling Mattress prices at every store

  • Lowe'sNew

    In stock

    $798.24Free shippingChecked Nov 9
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Store links may earn us a commission. Price via Klarna.

Serta 12-in Firm California King Cooling Mattress price history

Lowest price we've seen: $798.24 on Nov 9 at Lowe's. Tracked across 1 store since Nov 9.

What reviewers say

Owner feedback on Serta's firm 12-inch foam mattress is mixed. Back and stomach sleepers tend to like the support and the cooling cover, while side sleepers and lighter buyers often find it too hard.

What people mention
  • FirmnessMixedBack and stomach sleepers praise the support, but side sleepers and lighter owners call it too hard.
  • CoolingPraisedOwners who run warm say the cooling cover helps them sleep through the night.
  • Edge supportCriticisedThe foam edges compress noticeably when sitting or sleeping near the side.
  • Motion transferPraisedCouples report that movement on one side barely carries to the other.
  • Off-gassingCriticisedSome owners notice a chemical smell that fades over the first few nights.

Specifications

Bed Size
California KingSource
Color
WhiteSource
Filling
Memory FoamSource
Thickness Mattress (")
12.0Source

Questions and answers

Is this mattress good for side sleepers?
Mostly no. The firm foam does not cushion shoulders and hips enough for many side sleepers, especially lighter ones. Side sleepers usually do better on a medium or plush model.
Does it need a box spring?
No. It works on a platform bed, slatted frame or adjustable base. A box spring is optional, and a solid or closely slatted base gives the foam the best support.
How long does it take to expand?
Expect most of the expansion within a day and full loft within about 48 to 72 hours. Sleeping on it sooner is fine, but it may feel firmer until it settles.
Will it sleep hot?
It runs cooler than basic memory foam thanks to the cooling cover, but an all-foam bed still traps more heat than a hybrid with coils. Hot sleepers should pair it with breathable bedding.
Is it a good fit for couples?
Yes for motion isolation, since foam absorbs movement well. Heavier couples should note the softer edges and consider a hybrid if they often sit on the side of the bed.
Where is the Serta 12-in Firm California King Cooling Mattress cheapest?
At Lowe's, for $798.24, as of our latest check.

Stores we've priced the Serta 12-in Firm California King Cooling Mattress at

  • Lowe's deals and prices

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