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Deal.ai › Zinus
Zinus
Zinus 12” King Mattress

Zinus 12” King Mattress

Best price now

$339.66at AmazonChecked Nov 13

Compared across 2 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

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Price facts

  • Last seen at $339.66 at Amazon on Nov 13.
  • Checked at 2 stores.

Our take on the Zinus 12” King Mattress

The Zinus 12-inch Green Tea Memory Foam Mattress is a king-size all-foam bed with a 3-inch memory foam top, 2 inches of comfort foam, and 7 inches of high-density airflow base foam. The foam is CertiPUR-US certified and infused with green tea extract and castor seed oil to limit odor and bacteria. It is a medium-firm bed that suits back and stomach sleepers and heavier adults who want pressure relief without springs. Against rivals, it is thicker and firmer than most budget memory foam beds, but it sleeps warmer and softens faster than latex or hybrid mattresses.

Best forBack and stomach sleepersHeavier adults wanting firm supportShoppers replacing a box springGuest rooms and rentals
Pros
  • 12-inch profile with 3 inches of memory foam
  • CertiPUR-US certified foam
  • Green tea and castor oil infusion limits odor
  • Medium-firm support for heavier sleepers
  • Works on a platform bed without a box spring
Cons
  • Sleeps warm for hot sleepers
  • Softens and develops body impressions over time
  • Strong foam smell at first
  • Not enough cushioning for side sleepers

Zinus 12” King Mattress prices at every store

  • Quality Liquidation SalesNew

    In stock

    $380.00Checked Nov 13
    Visit Quality Liquidation Sales
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $339.66Free shippingChecked Nov 13
    Visit Amazon

Store links may earn us a commission.

Zinus 12” King Mattress price history

Lowest price we've seen: $339.66 on Nov 13 at Amazon. Tracked across 1 store since Nov 13.

What reviewers say

Owners of the Zinus green tea line generally call it a solid value memory foam bed that is firmer than expected and easy to set up. Many praise the pressure relief and the low motion transfer. Common complaints are a chemical smell in the first days, sleeping warm, and softening or sagging within a couple of years.

What people mention
  • FirmnessMixedMany owners find it firmer than the medium-firm label suggests, which suits back sleepers but not everyone.
  • OdorCriticisedA chemical smell is common right after unboxing and fades over several days.
  • Sleep temperatureCriticisedThe dense foam traps heat, so hot sleepers report waking warm.
  • DurabilityMixedSome owners see body impressions or softening within a few years, while others report years of use.
  • Motion transferPraisedPartners notice little movement when the other person shifts or gets up.
  • SetupPraisedIt expands quickly after unrolling and needs no tools or box spring.

About the Zinus 12” King Mattress

This is a 12-inch king mattress made with Green Tea Memory Foam. The memory foam conforms to the body and relieves pressure for support.

It has four foam layers: 3 inches of memory foam, 2 inches of comfort foam, 3.5 inches of Airflow high-density foam and 3.5 inches of Airflow high-density base support foam. The foam is infused with green tea extract and castor natural seed oil to naturally retard odor and bacteria.

Size
King
Thickness
12 inches
Top layer
3 inches memory foam
Comfort layer
2 inches comfort foam
Support layers
3.5 inches Airflow high-density foam; 3.5 inches Airflow high-density base support foam
Infusions
Green tea extract and castor natural seed oil
Certification
CertiPUR-US certified foam

Questions and answers

Does this mattress need a box spring?
No. The all-foam design works on a platform bed, slatted frame, or the floor. A box spring is not required.
How firm is the 12-inch Zinus?
It is medium-firm. Most owners describe it as supportive rather than plush, and side sleepers often want a softer topper.
How long does it take to expand?
It is compressed in the box and usually reaches full shape within 48 to 72 hours. Some odor may linger for a few days.
Is the foam safe?
The foam is CertiPUR-US certified, meaning it meets limits on certain chemicals and emissions.
Can two people sleep on the king without feeling each other move?
Yes. Memory foam absorbs motion well, so movement from a partner is largely dampened.
Does it work for heavy sleepers?
The 7 inches of high-density base foam gives firm support, but very heavy sleepers may still see faster softening than on a hybrid.
Where is the Zinus 12” King Mattress cheapest?
At Amazon, for $339.66, as of our latest check.
Where can I buy the Zinus 12” King Mattress?
2 stores we checked sell it, including Quality Liquidation Sales, Amazon.

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