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Ashley
Ashley Select Hybrid 12 Inch California King Mattress
−60%
Home · 1StopBedrooms

A hybrid California king for sprawling sleepers

Ashley Select Hybrid 12 Inch California King Mattress

Ashley's Select Hybrid mattress in California king — for anyone who wants a big, supportive bed with a hybrid build.

Deal score 9.2 · Unreal
$1,082.32$2,720.36 1StopBedrooms's regular price

You save $1,638.04 at 1StopBedrooms

Checking it's still available…

Why it's a great deal

  • 1StopBedrooms lists its regular price at $2,720.36: 60% off by its own figures
  • A shopper says it's comfortable and relieved their back pain after their old mattress Shoppers on Google Shopping
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Every store we checked

  • 1StopBedroomsNew

    In stock

    $1,082.32Observed at 4:43 PM
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From 1StopBedrooms

  • Comfort level: plush
  • Dual cooling action with phase changing material (PCM)
  • High-density gel memory foam for lumbar support
  • High-density body contouring support foam
  • Premium pressure-sensitive NanoCoil unit with individually wrapped coil pack
  • Adjustable base compatible
Sizes
Twin XL, Queen, King, Cal King
Materials
Hyper Cool luxury 4-way stretch knit cover; gel memory foam; body contouring support foam
Fit
California king size
Guarantee
10-year non-prorated warranty; purchasing mattress and foundation from two different brands may void warranty
Shipping
FREE Shipping; ships by Nov 11
In the box
Mattress ships in a box

Specs

Length
83.5 in
Height
14 in
Width
72 in
Weight
126 lb

About the Ashley Select Hybrid 12 Inch California King Mattress

The Ashley Select Hybrid 12 Inch is a plush hybrid mattress that pairs individually wrapped NanoCoils with gel memory foam and a phase-change cooling layer. The coil core gives it more bounce and edge support than an all-foam bed, while the foam top softens pressure at the shoulders and hips. It suits side sleepers and couples who want a soft, responsive feel and an adjustable-base-friendly build. Against rivals, its cooling PCM layer and hybrid coils are the selling points; the plush surface and boxed delivery are the main trade-offs for back sleepers who want firm support.

Best forSide sleepers who want a soft, pressure-relieving surfaceCouples who prefer bounce over the sink-in feel of all-foamShoppers with an adjustable baseHot sleepers drawn to the cooling layer
Pros
  • Individually wrapped coils add bounce and airflow
  • Gel memory foam cushions shoulders and hips
  • Phase-change material is designed to pull heat away
  • Works with an adjustable base
  • Ships compressed in a box for easy setup
Cons

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Price facts

  • Lowest price today: $1,082.32 at 1StopBedrooms (checked Nov 9, 2026).

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  • Plush top may feel too soft for stomach and some back sleepers
  • Only 12 inches tall, so it sits lower than many hybrids
  • Coil-and-foam hybrids can transfer motion between partners
  • Boxed mattress needs time to fully expand

What reviewers say

  • 4.7 / 513 ratings

Buyers rate it highly, with most praising the soft yet supportive feel and the cooling layer. A few find the plush surface too soft and note some motion transfer.

What people mention
  • ComfortPraisedOwners describe a plush, pressure-relieving surface that still feels supportive.
  • CoolingPraisedSeveral say the phase-change layer keeps them cooler than their old foam bed.
  • FirmnessMixedSide sleepers like the soft top, but some back and stomach sleepers find it too soft.
  • Motion transferCriticisedA few couples notice movement carrying across the coil core.
  • SetupMixedIt arrives boxed and easy to move, but takes time to reach full height.

Questions and answers

Is this mattress good for side sleepers?
Yes. The plush gel foam top cushions shoulders and hips, which suits side sleeping. Back and stomach sleepers may want a firmer surface.
Does it work on an adjustable base?
Yes. Ashley lists it as adjustable base compatible, so it bends with a power base.
How long does it take to expand after unboxing?
It ships compressed in a box. Expect most of the expansion within a day or two, with full loft taking longer.
Is it cooler than an all-foam mattress?
The coil core allows more airflow than solid foam, and the phase-change layer is designed to draw heat away. Most owners report sleeping cooler.
What size is the California King?
It measures 72 inches wide by 83.5 inches long and stands 14 inches tall, including the cover.
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