Best California King Size Mattresses Reviews For 2020

There are instances when a king-size mattress proves to be too large for a bedroom, while a queen-size seems too small. It is during these in-between moments that it becomes appropriate to get a California king-size one. This particular variant is long enough to accommodate tall persons but is also not too wide that it would make couples feel too far apart from each other.

However, are there special considerations you need to take into account when shopping for a California king-size mattress? Are there specific qualities you need to take note of so you can be sure you are getting nothing but the best? Of course, there are.

Allow this list of the best California King Size mattresses to serve as your guide in selecting the perfect mattress for you and your home. List down the qualities you want in a mattress and compare them against these best-selling brands.

Top 10 Best California King Size Mattresses Reviews

1. Zinus Memory Foam 12 Inch Green Tea Mattress

The Zinus Memory Foam mattress offers a unique way to keep the product fresh and free of germs and fungi that may be caused by the constant contact with the skin. The foam is infused with natural green tea extract which is a great antioxidant. It also has the CertiPUR-US seal that assures the mattress met the criteria for physical performance, indoor emissions, and environmental stewardship.


This mattress is composed of multiple layers of foam all working together to achieve just the right firmness and guarantee a good night’s sleep. It helps alleviate tension and pressure on the body which are the common causes of pain and discomfort while sleeping.

The product consists of the 12 inches of foam — 7 inches of high-density base support foam, 3 inches of memory foam, and 2 inches of comfort foam. The memory foam allows the mattress to contour the body so you don’t feel soreness or any kind of pain even if you keep your position all night or toss and turn until the wee hours of the morning.

Zinus has its patent technology which makes it possible to compress the mattress and keep it rolled for efficient shipping. This also works for clients who are moving homes and bringing their mattresses. It is highly recommended to let the mattress expand for about 48 to 72 hours upon receipt of the product, during which time it is not recommended to use the mattress.

  • Memory foam contours the body
  • Relieves pressure on the body for a good night’s sleep
  • Infused with green tea for its antifungal properties
  • Ideal for use on cold nights with its heat retention capability
  • Can be compressed and rolled for moving purposes
  • It is not recommended to unzip the mattress cover
  • Needs 1 to 2 days for the mattress to rise fully

2. Linenspa 8 Inch Memory Foam and Innerspring Hybrid Mattress

The combination of memory foam and the traditional support of an innerspring mattress is what sets this Linenspa Hybrid Mattress apart from others on the market. The medium-firm feel is also made possible by the layers of polyester fiber, rayon fiber, polyurethane foam, and polypropylene fiber, making this product an affordable option for customers.


Linenspa’s memory foam mattress is known for helping align the spine in order to minimize pressure points and give you added comfort as you sleep. This, while the traditional spring coils add reliable support and prevent the foam from sagging entirely.

Thanks to the spring coils, too, this mattress has better breathability compared to others that only have layers and layers of foam. And it can accommodate heavier customers without compromising the quality of the mattress and its comfortability.

This mattress has the ability to conform to the curves of your body, which means it adapts to every customer’s needs. It’s effective in alleviating pressure in various points of the body so you can get better sleep quality each night you sleep in your bed.

The unique design of this Linenspa Memory Foam and Innerspring Hybrid Mattress also distributes body weight to contour and support you properly as you sleep. Linenspa ships the product rolled in a box, so it might take a while for it to expand to its true size upon receipt.

  • The innerspring prevents the foam from sagging all the way down
  • Offers a 10-year limited warranty
  • Distributes body weight and contours as you sleep
  • The foam layer on top prevents the spring coils from making a sound
  • CertiPUR-US certified and free of harmful products
  • It is recommended to open and inspect the mattress outside the house in case of bugs
  • Rolled and shipped in a box so it might need time to expand

3. TUFT & NEEDLE California King Mattress

Tuft & Needle prides itself on offering products that ensure a great quality of sleep while also being reasonably priced and long-lasting. Their California King Mattress has a high percentage of 5-star ratings on Amazon for good reason. The product is universally comfortable and is compatible with most frames, foundations, and box springs sold on the market. The mattress is exclusively sold online and Tuft & Needle offers a door-to-door delivery and setup to customers.


Sleepers of all shapes, sizes, and preferences would like how the Tuft & Needle California King Mattress fares compared to other similar products on the market. Designed with two layers of blended foam, this product assures you or comfortable sleep each night. One of the layers is a high-density support foam that keeps your body aligned and helps prevent pain and discomfort that may be caused by constantly changing sleeping positions or bad posture.

It also has Tuft & Needle’s Adaptive technology, which allows the mattress to adjust to your body contours whenever you move. You wouldn’t realize how this works until you wake up in the mornings feeling well-rested and completely relaxed.

The mattress also comes infused with graphite and cooling gel, which means you no longer have to worry about waking up in the middle of the night feeling so hot and drowning in sweat. It’s perfect during the warmer months but also does not make you feel too cold in the colder season.

  • Adapts to your body every time you move
  • Comes with a high-density support foam layer to keep your body aligned
  • Infused with graphite and cooling gel to dissipate heat
  • Compatible with most frames, foundations, and box springs
  • Offers a 100-night sleep trial for a full refund guarantee
  • The foam is not too firm, which may be an issue to some
  • Warranty is limited in the United States

4. LUCID 10 Inch Gel Memory Foam Mattress

True to its name, Lucid is able to provide its customers with nothing but wonderful nights of relaxing sleep. This 10-inch gel memory foam mattress is made using only high-quality materials and is designed to accommodate the various preferences of customers. It can adapt to your sleeping positions and does not cause unwanted pressure each time you move.


The memory foam feature is the main selling point of this Lucid Mattress. It has the ability to adjust to your movements and follow the unique contours of your body so you feel comfortable the whole night through. The responsive open cell memory foam also helps alleviate pressure on your back, neck, shoulders, and other points which is effective in reducing pain and discomfort.

For better ventilation, Lucid designed this mattress to increase airflow through the memory foam layer. It also comes with a TENCEL blend fabric cover that aids in improving breathability and prevents natural moisture from affecting your sleep. The addition of this special fabric cover creates an extra air layer on the surface of the mattress to prevent unwanted moisture that can cause molds to form and bed bug infestation.

The mattress might take an average of 2 days for it to expand to its true size but it guarantees months or even years of restful sleep once you have it set up in your bedroom.

  • Has a ventilated design for enhanced breathability and comfort
  • Features a responsive open cell memory foam that adjusts to your body weight
  • Helps alleviate pressure points to guarantee a good night’s sleep
  • The TENCEL blend fabric cover adds another layer of ventilation on the surface
  • Easy to set up and store when you have to move
  • Might be prone to mold formation when not taken care of properly
  • Needs time to fully inflate to its true size

5. Best Price Memory Foam Mattress

This Best Price Memory Foam Mattress is one of the most affordable options on the market. But it goes above and beyond in terms of quality, durability, and comfort. This product is great for homeowners who are looking to buy a low-cost memory foam mattress to use for several months to a couple of years. While it may not of the same quality as other high-end brands, it does its job and ensures you get quality sleep each night.


Best Price’s Memory Foam Mattress has the ability to adapt to your body weight so you can feel very comfortable as you sleep at night. It evenly distributes your weight to the surface, preventing you from sinking too deeply into the foam.

It can hug the unique contours of your body and help relieve pressure points in various areas. This guarantees that you wake up feeling restful and without any kind of pain and discomfort. It does not matter if you toss and turn a lot while you sleep because the mattress can absorb your weight. Plus, the ventilated soft foam keeps it breathable and prevents heat from being trapped.

This Best Price Memory Foam Mattress also has the seal and certification from the CertiPUR-US program of the Alliance of Flexible Polyurethane Foam. This guarantees that the product has undergone extreme testing and checking to ensure that it does not contain harmful materials and meets emissions standards set for indoor furniture.

  • Feels firm but quickly adapts to your body weight
  • Hugs your contours well to ensure comfort
  • Distributes weight evenly on the surface
  • Helps relieve pressure points in the body
  • Certified clean and safe by the CertiPUR-US program
  • Customers are advised not to remove the protective cover
  • Recommended to use a thin sheet on top to prevent the mattress from getting dirty

6. Classic Brands Cool Gel 1.0 Ultimate Gel Memory Foam Mattress

Classic Brands’ Ultimate Gel Memory Foam Mattress is made with a premium foam that is effective in relieving pressure in your body and giving you the most comfortable sleep of your life. It has a multiple-layer construction that includes a high-density base foam and the cool gel memory foam for stable support. This product also comes with two shredded memory standard pillows to complete the setup.


This Classic brands Ultimate Gel Memory Foam consists of three layers of foam — a nine-inch high-density base foam to reinforce support and provide a stable foundation, a two-inch cool gel support foam to prevent too much bounce, and a three-inch cool gel memory foam that contours to your body.

All these layers are working as one to ensure that you feel well-rested all through the night. You don’t have to worry about constantly moving and switching positions in your sleep because the memory foam is very much capable of adapting to your movements. This means that your movements are not being restricted but absorbed instead. The mattress is also helpful in alleviating unwanted pressure that could cause tension in your body, especially the neck, shoulders, back, and hips.

It features a cool gel infusion that regulates temperature so you don’t feel too hot during warmer days and not too cold during the colder months. This heat-regulating technology is also effective in preventing moisture from forming in the mattress.

  • Comes with a 9-inch high-density base foam for stable support
  • Includes 2 layers of cool gel foam for added comfort
  • The cool gel technology helps regulate temperature
  • Features foams that are naturally hypoallergenic
  • Resistant to allergens, molds, dust, mites, and bacteria
  • Requires about 72 hours to fully expand
  • The firmness depends on the success of inflation and your overall body weight

7. Sleep Innovations Shiloh 12-inch Memory Foam Mattress

Sleep Innovations knows that customers have varying preferences when it comes to products. This is the main reason why they create mattresses and other items that can adapt to your sleeping habits and patterns. The Shiloh Memory Foam Mattress is just one example of the brand’s careful consideration of its customers. This product was designed to accommodate all body types and sleeping positions.


The dual-layer design of this Sleep Innovations Shiloh Memory Foam Mattress features one layer of the brand’s Premium Base Foam at the bottom and another layer of its Advanced SureTemp Memory Foam on top.

The Premium Base Foam works to provide stable support on the mattress so you don’t sink to the bottom of the bed and feel the frame piercing through your back. The Advanced SureTemp Memory Foam, meanwhile, relieves pressure points to allow deeper and better sleep each night.

The California King mattress measures up to 12 inches in height, which is just enough to keep you elevated and prevent your back from touching the frame of your bed. It also features the brand’s patent technology, ensuring that the contours of your body are followed by the foam. This mattress comes with a removable cover for easy washing. It also helps keep the mattress free from spills, dirt, and dust that usually get transferred from your body to the bed.

  • Features two layers of foam for stable support and added comfort
  • Comes with a soft knit cover to keep the mattress clean
  • Regulates temperature for an undisturbed sleep night after night
  • Smartly packed for convenient carrying and set up
  • Comes with a removable zip cover for easy cleaning
  • The mattress starts to get squishy after a few years
  • The foam’s firmness may not be suitable for all

8. Olee Sleep Gel Infused Layer Top Memory Foam Mattress

Olee Sleep is one of the most reliable brands when it comes to memory foam mattresses. It has built a reputation of being an affordable option to customers while also providing great comfort when you sleep. This mattress, along with other products from Olee Sleep, is tested and certified by independent agencies and laboratories to ensure that it does not contain harmful elements for the consumers.


The main feature of this Memory Foam Mattress from Olee Sleep is the gel-infused top layer that provides a premium level of comfort for everyone. This technology allows the mattress to dissipate heat and regulate temperature, which means you don’t have to worry about waking up in the middle of the night feeling too hot. At the same time, it also does not make you feel too cold even when you sleep in a fully air-conditioned room.

The memory foam also provides unquestionable comfort and level of support to your back. It is effective in reducing the pressure in various points of the body, but more specifically in the back, hips, shoulders, and neck area. Its 10-inch dimension prevents you from sinking all the way down the bed frame and feeling the metal foundation on your back. It also ensures that your sleeping positions are well-accommodated all through the night. The mattress is rolled, compressed, and placed inside a box and it only takes minutes to set it up.

  • Provides support in all sleeping positions
  • Offers an ideal level of comfort and support
  • Infused with a cooling gel that helps dissipate heat
  • Includes a breathable outer cover to regulate the temperature
  • Easy to set up in your bedroom after taking out of the box
  • Needs at least 48 hours to expand fully
  • Requires an extra mattress cover to keep it clean

9. Brentwood Home Cypress Cooling Gel Memory Foam Mattress

Brentwood Home’s Cypress Cooling Gel Memory Foam Mattress is the ideal choice if you are looking for a mattress that has a motion isolation feature. This technology is not common among all mattress brands, but it is definitely something you should be checking out. The motion isolation feature ensures that you don’t feel the movements of other people on the bed so that you remain undisturbed in your sleep.


Brentwood Homes was not joking when it decided to pursue the production of memory foam mattresses. Every single detail of this product was well thought of from the design of the mattress, the unique features, and the materials used.

It is made from high-quality New Zealand wool that has moisture-wicking properties to prevent molds and other microorganisms from forming in the mattress. It also has a cooling gel technology that helps dissipate heat and regulate your temperature. This is effective in making you feel fresh and comfortable while you sleep.

The mattress also features a ventilated airflow zone that allows it to breathe from time to time. This complements the use of wool in the mattress and helps keep you cool. The memory foam technology, of course, is helpful in alleviating pressure in your body so you wake up feeling relaxed and well-rested despite switching into various sleeping positions the whole night through. This product includes a soft and durable bamboo-derived rayon cover to keep it clean at all times.

  • Comes with a removable bamboo-derived rayon cover for easy cleaning
  • Has a ventilated airflow zone that allows your mattress to breathe
  • Made from high-quality wool with moisture-wicking properties
  • Distributes weight evenly across the mattress
  • Has motion isolation feature to prevent disturbance while you sleep
  • Might be too expensive to some
  • Only comes with a 30-day Amazon warranty

10. Casper Sleep Foam Mattress

This Casper Sleep Foam Mattress is the answer for customers who are looking for a low-cost option that is also capable of providing a good night’s rest. It features everything a standard memory foam mattress offers, except that the people at Casper Sleep were able to give the product a more affordable price range. It is perfect for individuals who prefer having a lot of space when they sleep as well as couples or families who like staying together in one room.


This foam mattress from Casper Sleep is dubbed as “The internet’s favorite mattress” and it is easy to understand why. It has managed to encapsulate everything that a foam mattress should be in a single product.

It features four layers of foam that are fully capable of balancing comfort and support for your body as you sleep through the night. There is no longer a reason for you to wake up in the morning feeling sore and battered because you are guaranteed a relaxing sleep with this mattress.

The product also has a high-density base layer to provide a stable foundation and ensure that you do not sink no matter which part of the mattress you sleep in. Your entire body weight is evenly distributed to the surface while pressure points are also alleviated. It uses open-cell foams for improved breathability and ventilation, especially during the warmer season.

  • Has four layers of foam that perfectly balances comfort and support
  • Includes high-density base layer for a stable foundation
  • Uses open-cell foams for enhanced breathability and ventilation
  • The brand offers a 100-night trial with a guaranteed full refund
  • Ships in a box and is easy to set up at home
  • Might be too firm to some
  • There is a mild scent upon unboxing which should dissipate after a few hours

History of The California King Mattress

It was in 1590 when people were first introduced to the idea of an extremely huge bed that could accommodate 15 full-grown adults. It was called the Great Bed of Ware because it was made for an inn in Ware, England. The bed measured 10 x 11 feet and eventually became a famous relic that is now displayed in the Victoria and Albert Museum in London.

But it wasn’t centuries later when it came in the form of a mattress and served a commercial purpose. A furniture company in Los Angeles in the 1960s saw the demand for a new type of mattress that would cater specifically to athletes and celebrities. The first one they produced was 72 x 84 inches and was called the California king-sized bed.

The new bed size went into mass production after a few years, measuring 4 inches narrower but also 4 inches longer than the king-size bed.

What is the Difference Between California King vs King Mattress?

As previously mentioned, the main difference between a California King and King mattress is the size. The standard measurements of a king-size mattress are 76 inches in width and 80 inches in length. The California king-size, meanwhile, measures 4 inches slimmer but also 4 inches longer. This puts the California king at 72 inches in width and 84 inches in length.

There is also a slight difference in the surface area, as the California King has 6,048 sq. inches, while the King has 6,080 sq. inches. The California King is also referred to as the Western King, while the other is known as the Eastern King.

The choice between the two variants relies heavily on the height of the person who will sleep on it as well as how many there will be. For a single individual, a California king-size mattress may be most appropriate, but it is the contrary for couples or families.

Benefits of Using a California King Mattress

There are a number of reasons why a California King mattress is recommended compared to the regular King size and other variants. These reasons may be dependent on some factors such as your height and weight, but it surely covers the needs of most customers.

  • Alleviates pressure and discomfort

Most California king mattresses use memory foam as the main selling point of their products. This is ideal for alleviating pressure points in your body and ensuring that you don’t feel any kind of pain and discomfort from the moment you lie down until the time you wake up.

  • Great for taller persons

California King mattresses were initially mass-produced to cater to athletes for the fact that they are taller than most consumers. This is also the reason why it measures longer than the regular King size. This variant won’t let your feet dangle at the ends of the bed, which can be quite annoying.

  • Ideal for snuggling

While King-sized beds are ideal for families who like sleeping together, there’s a feeling of being too far apart when there’s only two of you on the bed. This makes the California King size mattresses the more ideal choice for couples who like to snuggle at night.

Things To Consider When Buying a California King Mattress

Now that you have a better understanding of California King mattresses, it’s time you revisit the list of features and qualities that you are looking for in a product. There could be changes to some of them and there might be non-negotiables that are not offered by the brand you prefer.

To help you come up with your final decision, here are some of the things that you need to consider when buying a California King mattress:

  • Sleeping position

Your mattress should be able to accommodate all types of sleeping positions without causing any kind of pain and discomfort to your body. After all, the reason you are looking for a mattress is that you need something that can guarantee a restful sleep.

If you are the type to switch positions all night, it would be best to get a mattress that adapts to the contours of the body. This ensures that your movements are not restricted, while also preventing you from sinking all the way down to the center of the bed.

  • Pain alleviation

Another reason to find a mattress that can quickly adapt to your movements is for pain alleviation. When you sleep, there are numerous pressure points that are affected by your sleeping position. To ensure that you are able to sleep soundly, your mattress should have the ability to reduce pressure in your body, particularly in the back, shoulders, neck, and hips. It should also be able to distribute your weight evenly to the surface.

  • Motion isolation

Motion isolation is not common in mattresses, but it is a very important feature to consider, especially if you are sleeping with another person. Be it your kids, a partner, a sibling, or even your pet, you would benefit greatly if your mattress has this technology.

It ensures that you do not feel someone else’s movements on the bed and keeps you undisturbed in your sleep. This is ideal for light sleepers as well as those who follow a different sleeping schedule from their partners.

  • Heat regulation

Your bed should neither be too hot nor too cold at any time of the year. This is why it is also important that your mattress has the ability to regulate temperature. Some mattresses use open-cell foams that have tiny pores in them to allow breathability and better ventilation. Not only does this help keep you comfortable while you sleep. It is also efficient in wicking moisture and preventing molds and other organisms from forming in your mattress.

  • Product firmness

There are people who prefer sleeping on firm mattresses, while there are some who like it really squishy and soft. If you are quite sensitive in this aspect, you have to make sure that the mattress you are getting is suitable for the level of firmness that you want. You might also want to consider mattresses with medium-firmness so you are can enjoy soft and stable qualities.

  • Removable cover

Most mattresses contain fiberglass and other fire-preventive materials inside, which is why it is not usually recommended to remove the cover. But to make cleaning easier and to keep your mattress from getting dirty, look for one that comes with a removable cover. It may be made of soft and durable knit or a bamboo-derived rayon fiber, which is both easy to clean and long-lasting.

Frequently Asked Questions

  • How do I know if a California King mattress is the right choice for me?

It mostly depends on the height of the person who will be sleeping on the bed as well as your preferences when sleeping with another person on the same bed. A California King mattress is the right choice for you if you are taller than most people and you don’t like your feet dangling at the end of the bed. It’s also recommended if you like sleeping closer to your partner as it is narrower than the regular King-size mattress.

  • Can California King mattresses fit most bed frames and box springs?

Generally, yes. But it would be better to check the dimensions of the frame and box springs before buying them so you can be sure that everything fits together.

  • Will a California King mattress suit a family?

If you don’t mind sleeping too close to each other, then a California King mattress will definitely suit your family. But if you prefer having more space in between one another, you might want to consider getting a King size mattress instead. This is mainly because a California King is narrower, meaning there could be less space on the sides.

  • Can I use King size sheets on my California King mattress?

This depends on the type of sheets you are thinking of using. If you are talking about regular flat sheets, then you wouldn’t have problems trying to cover a California King mattress. They usually have a few inches of allowance, allowing you to tuck them in the corners of the mattress, so there should be enough to cover a Californa King.

The case might be different, however, for fitted sheets because they are made for specific dimensions. So if you prefer getting fitted sheets for your mattress, make sure they are specifically for the California King size.


People spend a lot of time on their beds, which is why it is nothing short of essential that you are able to get the mattress that fits your needs whether it’s California King-Size or not.

Finding the right size and features is important because it is going to be one of the most utilized items in your home. Allot some time to scour as many options as possible so you do not miss out on products that could be the perfect match for your preferences. Make an effort to know what you want and watch it work wonders in your sleep quality.