Cool Gel 12" California King Medium Tight Top Gel Memory Foam Mattress, Grey
Cool Gel 12" California King Medium Tight Top Gel Memory Foam Mattress, Grey
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Cool Gel 12" California King Medium Tight Top Gel Memory Foam Mattress, Grey

4.3 stars out of 8647 reviews
(4.3)|
8,647 ratings
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Bed Size:California King
Mattress Thickness:12 in

Key item features

  • Advanced Technology: The latest in sleep technology, featuring a cool gel memory foam layer for temperature regulation and layers of breathable memory foam on high-density base foam for maximum comfort and support.
  • Elegant Design: Beautifully detailed waterfall edge cover with a four-way stretch top and charcoal gray knit sides that work with the memory foam to optimize its conforming properties.
  • Hypoallergenic: High-quality memory foam is naturally hypoallergenic and resistant to allergens, mold, bacteria, and dust mites, meeting CertiPUR-US program standards for performance, emissions, and durability.
  • Cooling Comfort: Infused with refreshing gel particles, the high-density memory foam provides a plusher, more comfortable sleeping surface, conforming to your body and supporting your back.
  • Convenient Delivery: Mattress ships compressed and rolled in a box, conveniently delivered to your door for easy set-up.
  • Universal Fit: Suitable for all ages and universally designed to fit California King size beds, measuring 84" L x 72" W x 12" H.
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Current price is Now $348.00
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was $399.99
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Customer ratings & reviews

4.3 out of 5 stars
stars8,647 ratings6,197 reviews
How item rating is calculated
  1. 5 stars68% (5,919)
  2. 4 stars13% (1,136)
  3. 3 stars5% (411)
  4. 2 stars4% (356)
  5. 1 star10% (825)

Reviews summary

Pros
  • : Offers great value for the cost.
  • : Provides a balance of firmness and softness for sleeping.
  • : Provides a restful sleeping experience.
  • : Made with durable materials that provide comfort and value.
  • : Provides a balance of comfort and support.
Neutral
  • : Offers dense support, but can be inconsistent in firmness.
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Showing 1-3 of 6,197 reviews

Mar 16, 2025
Jennifer
Item details
Bed size: King
Mattress thickness: 14 in
5 out of 5 stars review

Verified Purchase

I was originally looking for something very plush, but after comparing it to numerous other mattresses, I found myself always coming back to this one. After several weeks of researching and comparing prices I finally bought this one and Im sooo happy with my choice! It is extremely comfortable, was an excellent value for the price AND it came with two of the most comfortable pillows I have ever had. I will be purchasing another one for my son. He loves it too!

Helpful?8e13cd50-4509-11f0-b3a2-1fa7e18da77643347143
Jan 13, 2026
Kimberly
Item details
Bed size: California King
Mattress thickness: 10 in
5 out of 5 stars review

Verified Purchase

Better than our Sleep Number

Love this mattress. We have purchased 3 of these, one for our fifth wheel RV, one for our smaller camper, and one for our guest room in our apartment. The mattress is in our RV (we lived in full time for 4 years) has held up perfectly. The firmness is “just right”. We recommended this to our son that was needed a new mattress. He purchased it and now our other sons have decided to go with this mattress when it's time to replace their current mattress.

Helpful?8e13cd50-4509-11f0-b3a2-1fa7e18da77643347143
Jan 18, 2026
Walmart customer
Top Reviewer
Item details
Bed size: Queen
Mattress thickness: 14 in
5 out of 5 stars review

Verified Purchase

got this mattress over a week ago. it did have some off gassing so took about 2 to 3 days to get through that but the mattress is great quality and very comfortable. we had a nectar before this nit really didnt want to pay that price again and this matress has given comparable comfort for a much better price. mattress comfort is very subjective but I feel that it is a perfect medium between plush and firm. my husband is extremely matreess picky and he is loving it too.

Helpful?8e13cd50-4509-11f0-b3a2-1fa7e18da77643347143