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The Best California King Mattress

Last updated on May 5, 2020

We looked at the top 10 California King Mattresses and dug through the reviews from 33 of the most popular review sites including Happy Sleepy Head, Slumber Yard, Mattress1000, Phatfusion, Sleepopolis, New York Times Wirecutter and more. The result is a ranking of the best California King Mattresses.

Best California King Mattress

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Our Picks For The Top California King Mattresses

Show Contents
Our Take
Experts Included
Pros
Cons
  The Best Overall

Olee Sleep Gel Infused Blue Memory Foam Mattress

Olee Sleep

Gel Infused Blue Memory Foam Mattress

Overall Take

Maintains Its ShapeYou'll get years of comfortable sleep with the Olee Sleep Gel Infused Blue Memory Foam Mattress, which maintains its shape well.

Experts Included
DWYM Home Experts plus . Along with user reviews from Amazon.
  The Best Value

Linenspa Memory Foam & Innerspring Hybrid Mattress

Linenspa

Memory Foam Hybrid Mattress

Overall Take

Great BounceThe Linenspa Memory Foam Hybrid Mattress has an innerspring that promotes bounce, responding quickly as you switch positions.

Experts Included
DWYM Home Experts plus Slumber Yard, Slumber Search, Sleepopolis, Tuck. Along with user reviews from Amazon.
Pros
" Because of the innerspring system, this bed is very responsive and bouncy. There is absolutely no stuck-in-the-mud feeling with this mattress. We think it’ll be great for pillow fights."
Cons
"Many issues with durability reported."

Classic Brands Cool Gel Quilted Memory Foam Mattress

Classic Brands

Cool Gel Quilted Memory Foam Mattress

Overall Take

Cool and BreathableThe Classic Brands Cool Gel Quilted Memory Foam Mattress infuses its memory foam with cool gel to help regulate body temperature while you sleep.

Experts Included
DWYM Home Experts plus Best Mattress For You, Mattress Insight, Nerd Sleep. Along with user reviews from Amazon.
Pros
" A handy feature of the other two is that you can remove and wash the cover (not as common a mattress feature as you might think)."
Cons
"This mattress is heavier and more difficult to move around the home compared to other mattresses in the market because of its size and thickness."

Zinus Green Tea Memory Foam Mattress

Zinus

Green Tea Memory Foam Mattress

Overall Take

Great for Dual SleepersThe Zinus Green Tea Memory Foam Mattress isolates movement, keeping you from enduring another sleeper tossing and turning.

Experts Included
DWYM Home Experts plus Slumber Yard, Happy Sleepy Head, Sleepopolis, Mattress Clarity. Along with user reviews from Amazon.
Pros
" Since the Green Tea mattress has a classic memory foam feel, it does a great job of absorbing movement."
Cons
"Might seem too firm for some users. Foam tends to sag with time. Might not be suitable for heavier sleepers. Off-gassing, which might take a while to disappear."
Don't just take for granted what one reviewer says. Along with our own experts, DWYM analyzes the top expert reviews of the leading products and generates a score you can actually trust.
17

Products Considered

We identified the majority of the california king mattresses available to purchase.
10

Products Analyzed

We then selected the leading and most popular products for our team to review.

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33

Expert Reviews Included

In addition to our expert reviews, we also incorporate feedback and analysis of some of the most respected sources including: Happy Sleepy Head, Slumber Yard, Mattress1000, Phatfusion, Sleepopolis.

109,393

User Opinions Analyzed

We also incorporate user reviews from the leading retailers including Amazon.

Our experts reviewed the top 10 California King Mattresses and also dug through the reviews from 33 of the most popular review sites including Happy Sleepy Head, Slumber Yard, Mattress1000, Phatfusion, Sleepopolis, New York Times Wirecutter and more. The result is a ranking of the best of the best California King Mattresses.

DWYM is your trusted roduct review source. Our team reviews thousands of product reviews from the trusted top experts and combines them into one easy-to-understand score. Learn more.

Look for the DWYM seal for products that are the best in their category.

The Best Overall

Olee Sleep Gel Infused Blue Memory Foam Mattress

Our Expert Score
0.0
0 expert reviews
User Summarized Score
8.6
159 user reviews
Our Take

As comfortable as memory foam can be, an ongoing problem is the indentation many mattresses get after months of having weight on them. The Olee Sleep Gel Infused Blue Memory Foam Mattress holds up well, maintaining its comfort even after months of sleeping on it. It sets up in four easy steps and comes with a 10-year manufacturer's warranty.

What other experts liked
What other experts didn't like

The Best Bang For Your Buck

Linenspa Memory Foam & Innerspring Hybrid Mattress

Our Expert Score
7.2
4 expert reviews
User Summarized Score
8.8
21,209 user reviews
Our Take

The Linenspa Memory Foam Hybrid Mattress is only 8 inches thick, making it easier to set up than thicker models. You'll get great bounce, thanks to its innerspring system, so you won't have that "stuck-in-the mud" feeling you get with less responsive mattresses. It also has great temperature neutrality for those who tend to easily overheat while sleeping.

What other experts liked
Because of the innerspring system, this bed is very responsive and bouncy. There is absolutely no stuck-in-the-mud feeling with this mattress. We think it’ll be great for pillow fights.
- Slumber Yard
Thick mattresses for the price. Coil support and foam contour.
- Slumber Search
This mattress is a great bargain and would make a solid addition to a new apartment or college dorm room.
- Sleepopolis
Good temperature neutrality.
- Tuck
What other experts didn't like
While this bed has good support from the coils, it’s still only 8” thick, so it won’t be as durable and heavier folks may bottom out if they sit down or turn over too hard.
- Slumber Yard
Many issues with durability reported.
- Slumber Search
I should note that since the bed is only 8” thick, the 100 lb. medicine ball did technically sink through most of the mattress, so heavier sleepers may find that the Linenspa won’t provide them with the support they’ll need to feel comfortable.
- Sleepopolis
Questionable durability.
- Tuck

Overall Product Rankings

Olee Sleep Gel Infused Blue Memory Foam Mattress

1. Olee Sleep Gel Infused Blue Memory Foam Mattress

Overall Score: 9.3
Reviews Included: 1

Linenspa Memory Foam & Innerspring Hybrid Mattress

2. Linenspa Memory Foam & Innerspring Hybrid Mattress

Overall Score: 9.1
Reviews Included: 5

Classic Brands Cool Gel Quilted Memory Foam Mattress

3. Classic Brands Cool Gel Quilted Memory Foam Mattress

Overall Score: 9.0
Reviews Included: 5

Zinus Green Tea Memory Foam Mattress

4. Zinus Green Tea Memory Foam Mattress

Overall Score: 8.9
Reviews Included: 5

TUFT & NEEDLE Adaptive Foam Mattress

5. TUFT & NEEDLE Adaptive Foam Mattress

Overall Score: 8.9
Reviews Included: 5

Casper Element Mattress

7. Casper Element Mattress

Overall Score: 8.6
Reviews Included: 5

Vibe Gel Memory Foam Mattress

8. Vibe Gel Memory Foam Mattress

Overall Score: 8.6
Reviews Included: 5

PrimaSleep Wave Gel Infused Memory Foam Mattress

9. PrimaSleep Wave Gel Infused Memory Foam Mattress

Overall Score: 8.5
Reviews Included: 5

LUCID Bamboo Charcoal & Aloe Vera Foam Mattress

10. LUCID Bamboo Charcoal & Aloe Vera Foam Mattress

Overall Score: 8.3
Reviews Included: 5

Our California King Mattress Findings

Olee Sleep Gel Infused Blue Memory Foam Mattress

What We Liked: As comfortable as memory foam can be, an ongoing problem is the indentation many mattresses get after months of having weight on them. The Olee Sleep Gel Infused Blue Memory Foam Mattress holds up well, maintaining its comfort even after months of sleeping on it. It sets up in four easy steps and comes with a 10-year manufacturer’s warranty.

Linenspa Memory Foam & Innerspring Hybrid Mattress

What We Liked: The Linenspa Memory Foam Hybrid Mattress is only 8 inches thick, making it easier to set up than thicker models. You’ll get great bounce, thanks to its innerspring system, so you won’t have that “stuck-in-the mud” feeling you get with less responsive mattresses. It also has great temperature neutrality for those who tend to easily overheat while sleeping.

Classic Brands Cool Gel Quilted Memory Foam Mattress

What We Liked: The Classic Brands Cool Gel Quilted Memory Foam Mattress uses the latest technology to give you both comfort and body temperature regulation. You can remove and wash the cover as needed to help keep your sleeping surface as clean as possible. The high-density base foam is designed to support your body while also keeping you comfortable.

Zinus Green Tea Memory Foam Mattress

What We Liked: The design of the Zinus Green Tea Memory Foam Mattress is great for multiple sleepers, thanks to a design that keeps bounce to a minimum. The mattress is infused with green tea to emit a pleasant, relaxing odor. It has a classic memory foam feel that is both supportive and comfortable.

Ashley Furniture Chime Express Hybrid Innerspring Firm Mattress

What We Liked: Those who need an extra supportive mattress can benefit from the Ashley Furniture Chime Express Hybrid Innerspring Firm Mattress. Quilted foam provides a comfortable sleep, built for those who like a less firm mattress. It will take a couple of days to reach its full size once you’ve unboxed it, so factor that in if you’re buying for a specific occasion.

Vibe Gel Memory Foam Mattress

What We Liked: With the Vibe Gel Memory Foam Mattress, you get five full layers of gel-infused foam to support you while also keeping you cool. It keeps motion to a minimum by the foam reshaping itself as you move. It can be used with an adjustable bed base and needs deep fitted sheets to accommodate its extra height.

Our California King Mattress Buying Guide

King beds are great for those who like to spread out a little, but it’s only wider than a queen bed, not longer. If you’re more than a few inches over six-feet tall, you probably have noticed this similarity. That’s where a California king mattress comes in.

Surprisingly, a California king isn’t as wide as a standard King bed, although you may not notice the few inches you’re giving up. With California kings, it’s all about that extra four inches in length you get. A standard king mattress is 76-inches by 80-inches, while a California king will give you 72-inch by 84-inches. Not a huge difference, but when your feet reach all the way to the end of a standard mattress, it’s a welcome expansion. But if width matters, you’re better off with a standard king.

The addition of California king to the roster isn’t the only thing complicating mattress choices these days. At one time, mattresses were made up of coils and cushioning, later on adding a “pillow top” for extra softness. But innovators have brought us technologies like memory foam and gel that can enhance comfort without sacrificing support.

There are multiple types of mattress construction today. One is an innerspring mattress, which is the version people have slept on for decades. With an innerspring, you get a grid of coils that provide support and bounce, along with padding to keep you from sleeping on springs.

But today, you’ll often see what’s known as a hybrid mattress. These mattresses individually pocket each spring to support you while also keeping bounce at a minimum. This means if you’re sleeping with someone and that person rolls over, you won’t feel it as much as you would on a traditional mattress setup.

Then there are all-foam mattresses, which typically combine layers of foam to create a comfortable yet supportive sleeping surface. It’s important, with foam mattresses, to look at the number of layers, as well as whether they use memory foam, latex foam or another type, as each kind of foam provides a different type of experience. You’ll also find that some foam mattresses use gel in one form or another to keep you cool while you sleep.

DWYM Fun Fact

Your brain isn’t the only thing that restores itself during a good night’s sleep. Your body also rids itself of dead skin cells, and those cells end up in your pillow, bedding and mattress. To help with this, you should wash your bedding in hot water at least once a week, including your pillowcases. During sleep, other body processes are halted, including the production of urine, which is why you might notice a darker color in the bowl during that first trip to the bathroom each morning. During REM sleep, your body also enters a state of paralysis to prevent moving around while you’re dreaming.

The California King Mattress Tips and Advice

  • Before you start shopping for a mattress, think about what you need. If you have a bad back or other aches and pains, you’ll need support. A mattress that causes you to sink into the bed may only exacerbate your issues.
  • You should also consider how you sleep. If you spend most of the night on your side, for instance, a mattress that conforms to your shape like one made from soft foam could work better for you. Stomach sleepers, on the other hand, will find a firmer mattress less suffocating.
  • You’ll see bounce mentioned quite often with mattresses. There are pros and cons to having that extra bounce. A mattress with less spring can make you feel as though your movements are limited. However, if you sleep with someone else, that bounciness can become a nuisance, with the bed shaking every time the other person moves.
  • Foam offers more cushioning than springs with padding, but it comes with a downside. Foam can tend to increase your body heat, making you uncomfortable while you sleep. For that reason, many manufacturers use gel to cool things off.
  • If you’re ordering your mattress online, keep in mind that some mattresses need time to unpack. Those that come in a box have to be removed and left to gradually decompress over the hours, and sometimes days, that follows.
  • Online mattresses also may release some chemicals after being unpacked. This is known as off-gassing and is common in manufactured products like memory foam. Some people find the chemical smell while this is happening unpleasant, so you may want to unpack your mattress in a well-ventilated room. Open some windows when you can and allow a couple of days before setting your mattress up and covering it with bedding.
  • Keep in mind that different mattresses have varying thicknesses. If you’re buying a California king bed for the first time, you’ll probably need to purchase sheets to accommodate the new length, but also keep in mind that your fitted sheets will need to be made to fit the thickness of the mattress you choose.
  • Also keep in mind that other items you currently use, like blankets, duvets and comforters, might not accommodate the longer build of a California king bed and replace those if necessary.
  • Although California king mattresses can be pricey, you can find lower-priced online mattresses if you aren’t picky about comfort levels. If you’re buying a mattress for a dorm room or first apartment, this is a great way to save money.
  • Durability is important in a mattress, but keep in mind that for optimum comfort, experts recommend replacing your mattress every 10 years. Some manufacturers provide a 10-year warranty against manufacturer’s defects, so you’ll at least be protected against issues they’ll admit was their fault.
  • Some mattresses have covers you can remove and wash. If yours doesn’t come with one, you can separately purchase a mattress cover that will help you maintain a hygienic environment.
  • You probably won’t have to move your mattress very often but consider how difficult your mattress will be to maneuver if you rearrange your furnishings or relocate on a fairly frequent basis.
  • Some mattresses specialize in emitting a subtle scent, such as green tea. If you prefer to fill your home with pleasant smells, this may be a good option for you.

About The Author

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Stephanie Faris 

Stephanie Faris is a novelist and professional writer. She lives in a beautiful one-acre home in the suburbs on the outskirts of Nashville. Her home and garden work has appeared on popular home sites. She's a true homebody and loves looking at new houses for sale for inspiration on her own home remodeling projects.