StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • Use in AI assistants
  • Contact
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.·2222 Ponce de Leon Blvd, Miami, FL 33134·support@deal.ai
TermsPrivacy
Deal.ai
1
12 Inch King Cooling Comfort Mattress

12 Inch King Cooling Comfort Mattress

4(1 rating)

Best price now

$719.00at Plank+BeamChecked Nov 13

Prices are checked against each store and labelled with when.

Visit Plank+Beam

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Last seen at $719.00 at Plank+Beam on Nov 13.
  • Our take on the 12 Inch King Cooling Comfort Mattress

    This is a 12-inch king memory foam mattress with a gel-infused foam layer meant to pull heat away and ease pressure points. It uses medium-firm support that the maker says suits back, side and stomach sleepers, and it is CertiPUR-US certified with a breathable knit cover. It ships compressed in a box and carries a 10-year prorated warranty. Against rivals, it is a straightforward all-foam bed without springs or a zoned support layer, so it competes on cooling foam and a simple setup rather than on edge support or motion isolation claims.

    Best forShoppers who sleep hot and want gel foamBack, side and stomach sleepers wanting medium-firm feelGuest rooms and quick bedroom setupsBuyers who want a boxed king without a spring layer
    Pros
    • Gel-infused memory foam aimed at temperature control
    • Medium-firm feel the maker says suits all sleep styles
    • CertiPUR-US certified foam
    • Breathable cover
    • Ships compressed in a box for easy setup
    • 10-year prorated warranty
    Cons
    • All-foam build gives less edge support than a hybrid
    • No zoned or reinforced support layer
    • Prorated warranty means coverage shrinks over the years
    • Memory foam can feel warm to hot sleepers despite the gel

    12 Inch King Cooling Comfort Mattress prices at every store

    • Plank+BeamNew

      In stockReturn policy

      $719.00Checked Nov 13
      Visit Plank+Beam

    About the 12 Inch King Cooling Comfort Mattress

    The 12-Inch King Cooling Comfort Mattress is a king-size memory foam mattress. It has a layer of gel-infused memory foam that helps regulate temperature and relieve pressure points.

    The feel is medium-firm, which is meant to balance softness and support for all sleep styles. A plush, breathable cover wraps the mattress. The foam is CertiPUR-US certified.

    The mattress ships compressed in a box. It is backed by a 10-year prorated warranty.

    Size
    King
    Thickness
    12 inches
    Type
    Memory foam
    Cooling
    Gel-infused memory foam layer
    Firmness
    Medium-firm
    Cover
    Plush, breathable
    Certification
    CertiPUR-US certified
    Packaging
    Shipped compressed in a box
    Warranty
    10-year prorated

    Questions and answers

    Will this mattress actually sleep cool?
    It has a gel-infused memory foam layer meant to move heat away, plus a breathable cover. Gel foam helps, but any all-foam bed traps some heat, so hot sleepers should still expect a warmer feel than a spring mattress.
    Is medium-firm right for side sleepers?
    The maker says the medium-firm feel suits all sleep styles. Side sleepers usually want enough give at the shoulder and hip, and medium-firm foam generally provides that, though very light sleepers may find it firm.
    Does it need a box spring?
    No. It is a foam mattress that works on a platform bed, slatted frame or adjustable base. A solid or closely slatted base supports the foam best.
    How long until it fully expands after unboxing?
    It ships compressed in a box and expands once opened. Foam beds of this thickness typically take a day or so to reach full height, and the new-foam smell usually fades within a few days.
    What does the 10-year prorated warranty cover?
    It is a prorated warranty, so coverage is fullest early and declines over the term. It typically covers manufacturing defects such as sagging beyond a set limit, not normal softening or stains.
    Is it a good fit for couples?
    Memory foam limits motion transfer, which helps couples who wake each other. The trade-off is weaker edge support than a hybrid, so the perimeter feels softer when sitting or sleeping near the side.
    Where is the 12 Inch King Cooling Comfort Mattress cheapest?
    At Plank+Beam, for $719.00, as of our latest check.
    What do buyers say about the 12 Inch King Cooling Comfort Mattress?
    Rated 4 out of 5 from 1 ratings.

    More hybrid mattresses

    • M
      Mocangtu 14" King Hybrid Mattress in a Box
      Mocangtu 14" King Hybrid Mattress in a Box
    • T
      Tryagat 12” King Hybrid Mattress in a Box
      Tryagat 12” King Hybrid Mattress in a Box
    • A
      Allswell King 10" Hybrid Mattress in a Box
      Allswell King 10" Hybrid Mattress in a Box
    • M
      MRH 12 inch King Euro Top Hybrid Mattress
      MRH 12 inch King Euro Top Hybrid Mattress
    • A
      Arienivo King Mattress 14" Hybrid Mattress in a Box
      Arienivo King Mattress 14" Hybrid Mattress in a Box
    H
    Hzbaod 14 inch King Hybrid Mattress in a Box
    Hzbaod 14 inch King Hybrid Mattress in a Box
  • 1
    10 inch King Hybrid Mattress in a Box
    10 inch King Hybrid Mattress in a Box
  • T
    Tempur-Pedic TEMPUR-Adapt Medium Hybrid King Mattress
    Tempur-Pedic TEMPUR-Adapt Medium Hybrid King Mattress