Best 6-Inch California King-Size Mattresses


Our review process

On the hunt for a new mattress but not sure where to begin your search? We collected data on more than 2000 mattresses and used our machine learning platform to rate each of these mattresses. Our research looked at over 65,000 data points and plugged them into our innovated software, which then created scores and categorized similar mattresses together, such as 6-inch California king-size mattresses. Consider this guide your one-stop-shop for everything you need to know about 6-inch California king-size mattresses.

Here's what we think you'll want to know before buying a 6-inch California king-size mattress. These mattresses are suitable for couples, providing plenty of space for you to move around. They measure 72" X 84" and are great for master bedrooms. With a longer build, they are ideal for tall adults who need additional leg room. However, they are large and heavy, making them hard to transport and flip. In addition, California king-size mattresses are not great for areas with limited room, making small rooms look somewhat cluttered.

These 6-inch mattresses are great for trundle beds, which will be convenient for sleepovers. They are easy to transport, due to their compact construction. 6-inch mattresses are suitable to use with standard-size sheets, so you can easily find sheets and other bed accessories that fit. However, they sometimes don't provide the adequate level of support and comfort for the average person, so if you suffer from joint or back pain, then you should look for a thicker mattress. Moreover, they wear out quickly, so you will have to replace them more often.

Our Top Ranking Mattresses
Best Overall Score
An image of Scott Living Plush Foam California King-Size Super Soft 6-Inch Mattress

For both comfort and support, choose the Scott Living Plush Foam California King-Size Mattress and enjoy a good night's sleep. This Scott Living mattress has a supportive design, aligning your spine horizontally when sleeping on your side. With a plush comfort level, it is suitable for those who like extra softness. Available in a California king-size, this Scott Living mattress offers extra space from top to bottom. With a foam construction, it alters to fit your body shape. It includes a soft cover, providing an additional layer of comfort and protection to your mattress. It is built with soft foam.

    Pros
    • Plush mattress is good for side and back sleepers whose top priority is comfort and softness
    • Supportive design ensures proper spinal support and alignment
    • California king-size is four inches longer for more leg room
    Cons
    • Comes in a California king-size, reducing the amount of horizontal sleeping space
    • Plush mattress can get lumpy or sag over time
    • Foam construction releases unpleasant odors
Runner Up
An image of Scott Living Soft Hybrid California King-Size Foam Base Super Soft 6-Inch Mattress

For a better night's sleep and endless comfort, select a Scott Living Soft Hybrid California King-Size Mattress. This Scott Living mattress has a hybrid construction, which combines the best features of various different mattress types. It has a soft comfort level, which prevents pressure by balancing your body without having your back or joints sink. Available in a California king-size, this Scott Living mattress provides additional space from top to bottom. It includes a soft cover, which provides an added layer of comfort and protection. It features a foam base, so all major pressure points are sufficiently supported.

    Pros
    • Soft mattress prevents pressure by balancing your body without having your back or joints sink
    • Foam base is designs to give provide excellent comfort
    • California king-size is longer for more leg room
    Cons
    • California king-size reduces the width of sleeping space
    • Hybrid construction can be heavy and cumbersome to move around or store
Additional Picks
An image of Scott Living Soft Memory Foam California King-Size Foam Base Super Soft 6-Inch Mattress

For both comfort and support, choose the Scott Living Soft Memory Foam California King-Size Mattress and enjoy a restful night's sleep. This Scott Living mattress is available in a California king-size, reducing the width of sleeping space. It has a foam base, which ensures even weight distribution to give your body proper support. With a soft comfort level, it is perfect for back or side sleepers and provides a plush-like feeling while still relieving specific pressure areas. It features a memory foam construction, which will let you move around in your sleep and then re-contours to your body after you've found a comfortable position. It has a soft cover, providing an added layer of comfort and protection to your mattress. It is designed with soft foam.

    Pros
    • Soft mattress provides an ideal surface for those who sleep on their side
    • Foam base supports each part of the body evenly and individually by distributing your weight across the mattress
    • California king-size is longer for more leg room
    Cons
    • California king-size reduces the amount of horizontal sleeping space
    • Memory foam construction can be hard for some to get off of the bed
An image of Dreamfoam Bedding Firm Memory Foam California King-Size Foam Base 6-Inch Mattress

For a good night's rest and endless comfort, choose a Dreamfoam Bedding Firm Memory Foam California King-Size Mattress. This Dreamfoam Bedding mattress is available in a California king-size, reducing the amount of horizontal sleeping space. With a firm comfort level, it provides the support necessary for spinal alignment. Made without PBDEs, TDCPP, or TCEP, it doesn't have any unnatural chemicals. This Dreamfoam Bedding mattress is made with durable materials, which allows it to remain in excellent condition for years ahead.

With a memory foam construction, this Dreamfoam Bedding mattress accommodates every possible sleeping position. It includes two layers, so you can enjoy two layers of support. Built with a foam base, it adequately supports all dominant pressure areas of your body. Equipped with pressure point relief technology, it is ideal for stomach sleepers. Contouring to your body, this Dreamfoam Bedding mattress provides improved support and comfort.

    Pros
    • Firm mattress is great for people who need precise spinal alignment
    • Features a foam base, giving you the perfect mix of both comfort and support
    • Contours to your body for superior pressure point relief
    Cons
    • Comes in a California king-size, reducing the amount of horizontal sleeping space
    • Firm mattress can put painful pressure on pressure points
    • Memory foam construction releases VOCs
An image of Scott Living Firm Hybrid California King-Size Foam Base Super Soft 6-Inch Mattress

For a good night's rest and ultimate comfort, select a Scott Living Firm Hybrid California King-Size Mattress. This Scott Living mattress has a firm comfort level, which will adapt to the natural curves of your spine in order to keep your body properly aligned. It is available in a California king-size, reducing the width of sleeping space. It has a hybrid construction, incorporating the best features of each different mattress type. It features a soft cover, providing an extra layer of comfort and protection to your mattress. It features four layers, working together for the ultimate in comfort and support. It features a foam base, which is designed to give provide superior comfort. It has soft foam.

    Pros
    • Firm mattress provides additional support to prevent the body from sinking
    • Features a foam base, ensuring all major pressure areas are well supported
    • California king-size is longer for more leg room
    Cons
    • Comes in a California king-size, reducing the amount of horizontal sleeping space
    • Firm mattress can put uncomfortable pressure on pressure points
    • Hybrid construction can be heavy and burdensome to move around or store
An image of Orthofoam Sleep Inc Memory Foam California King-Size 6-Inch Mattress

Are you searching to better support your upper and lower body at night? Checking out the Orthofoam Sleep Inc Memory Foam California King-Size Mattress. This Orthofoam Sleep Inc mattress is available in a California king-size, reducing the width of sleeping space. This cotton mattress is easy to wash and won't retain odors. With a memory foam construction, it accommodates every possible sleeping position. It is made with innovative pressure point relief technology to increase comfort and alleviate pain.

    Pros
    • Features a cotton cover, ensuring endless softness to get you a better night's sleep
    • Offers pressure point relief, reducing pain or stiffness while sleeping
    • Comes rolled to make it easy to transport
    Cons
    • California king-size reduces the amount of horizontal sleeping space
    • Memory foam construction releases VOCs
Still Need Help Narrowing Down Your Options? Here's Some Additional Information to Know:
Picking Your Mattress Type
Hybrid Mattresses

If you're thinking about getting a hybrid mattress, this 6-inch California king-size mattress could be a good choice. Moving heat away from your body, these mattresses ensure that you'll stay cool and comfortable throughout the night. They have pressure-point relief, which helps eliminate any tension in your joints. With various foam types, they offer just the right amount of support you need. They feature various kinds of coils, which are designed to make you feel like you're floating on your bed and aren't sinking into it. These mattresses ensure even weight distribution, encouraging appropriate spinal alignment without sinking or tipping. One downside is that they are expensive, so if you're looking for a more affordable mattress, you should consider something else.

Memory Foam Mattresses

Before you buy, you'll want to decide if a memory foam mattress is right for you. We recommend to start by looking at this 6-inch California king-size mattress to give you a better idea. These mattresses provide pressure-point relief by supporting the shoulders and hips. Featuring various foam types, they offer just the right amount of support you need. They have superior motion isolation, making them great for restless sleepers, unlike conventional spring mattresses. Something to consider is that they can smell a bit like chemicals initially, sometimes lasting up to many weeks before wearing off. Also, these mattresses aren't waterproof, so you'll want to be careful and make sure that they don't come into contact with too much moisture.

Foam Mattresses

If you're thinking about getting a foam mattress, this 6-inch California king-size mattress could be a good choice for you. These foam mattresses provide pressure-point relief by supporting the shoulders and hips. Featuring various foam types, they offer just the right amount of support you need. They have superior motion isolation, making them great for restless sleepers, unlike conventional spring mattresses. Something to consider is that they aren't waterproof, so you'll need to be careful and make sure that they don't come into contact with moisture. On top of that, they may retain your body heat, so if you are a warm sleeper, then you might want to consider a mattress with better breathability.

A Guide on Comfort Level
Firm Mattresses

Unsure if a firm mattress is right for you? We think that you should take a look at a 6-inch California king-size mattress to help make up your mind to help make up your mind. These mattresses have a 34-36 pound indentation load deflection ranking and are perfect for those who tend to sleep on their back. They distribute your weight properly to support your joints and other vulnerable areas. Providing improved circulation, they promote deeper and more restful sleep. One downside is that they can put painful tension on specific pressure points, so if you want a mattress that alleviates pain in pressure points, this is not the mattress for you. On top of that, they may be uncomfortable if you're not accustomed to sleeping on hard surfaces, so it'll take some time to get used to them.

Plush Mattresses

Unsure if a plush mattress is right for you? Take a look at a 6-inch California king-size mattress to help make up your mind. These mattresses are built with an indentation load deflection rating of 19-21 pounds and are ideal for individuals who sleep on their back, sides, or stomach. Providing contoured support, they adjust to the natural curves of your body for optimal comfort. Plush mattresses provide extra support to give relief to people with any joint pain or back problems. One downside is that they can become lumpy or sag with prolonged use, so your body won't be properly supported when sleeping. On top of that, they may be problematic if various people will be sleeping in the bed, causing the surface to sink if there is a significant weight difference.

Soft Mattresses

Unsure if a soft mattress is right for you? Take a look at a 6-inch California king-size mattress to help make up your mind. Soft mattresses feature contouring support, adjusting to your body shape for optimal comfort. They are designed with a 19-21 pound indentation load deflection rating and are suitable for people who sleep on their sides. Soft mattresses give you extra support, helping to alleviate any back problems or joint pain that you're experiencing. However, they provide less support than other mattresses, so you should search for a firmer mattress if you have back discomfort. Additionally, they often become softer over time, so they'll wear down quicker than other kinds of mattresses and you'll probably want to replace them sooner.