Best Split California King-Size Mattresses


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No more trying to get through confusing articles and infographics to try to decide which split california king-size mattress you need! By reading this article, you'll have an excellent understanding of what kinds of mattresses are on the market, so you can confidently purchase a mattress that will ensure comfortable sleep for years to come.

Looking to feel re-energized and enjoy a restful night's sleep? You might want to consider getting a split california king-size mattress. Split california king-size mattresses are perfect for couples, eliminating motion transfer completely. They have two twin XL size mattresses installed on one base, facilitating completely different sleeping preferences in partners. Providing additional length, they are perfect for taller adults who need extra leg space. These split California king mattresses measure 72" X 84" and are ideal for master bedrooms.

Best Overall Score
An image of Sealy Firm Memory Foam Split California King-Size Foam Base 11.5-Inch Mattress

For a good night's sleep and ultimate comfort, select a Sealy Firm Memory Foam Split California King-Size Mattress. This thick mattress is available in a split california king-size, creating a space in between the two, which also makes the bed seem smaller. It has an 11.5-inch thickness, which ensures support for heavier sleepers. It has a firm comfort level, which will provide support to your body for all sleeping positions.

This Sealy mattress features a memory foam construction, accommodating every possible sleeping position. It has a moisture protection cover, extending the performance of your mattress by protecting against spills or water damage. It features a foam base, which has a greater density for increased comfort and durability. With a design that conforms to your body, it provides improved comfort and support to eliminate pain in sensitive areas of the body. It has cooling technology, which helps hot sleeps stay comfortable throughout the night.

    Pros
    • Firm mattress ensures a deeper and more restful sleep
    • Features a foam base, ensuring all main pressure points are adequately supported
    • Designed to conform to your body for special support and comfort
    Cons
    • Split california king-size will require you to get new sheets, one for each side
    • Firm mattress can put painful pressure on pressure points
    • 11.5-inch thickness can tend to appear bulky in some bed frames
Runner Up
An image of Sealy Plush Hybrid Split California King-Size Response Pro HD Zoned Coil System Foam Base 14-Inch Mattress

For a good night's rest and ultimate comfort, select a Sealy Plush Hybrid Split California King-Size Mattress. With a hybrid construction, this thick mattress combines the best features of various different mattress types. Made to conform to your body, it can help relieve pressure and pain in sensitive areas of the body. It reduces motion transfer, which makes it perfect for restless sleepers since any movement stays isolated.

With a plush comfort level, this Sealy mattress is good for those who love extra softness. It has a 14-inch thickness, which may tend to appear bulky in some bed frames. This thick mattress is available in a split california king-size, adjusting to different sleeping styles. Including a foam base, it adequately supports all main pressure areas of your body. This Sealy mattress features a knitted cover, keeping its shape for easy care.

    Pros
    • Plush mattress is an ideal choice for those looking for a soft surface with additional cushioning
    • Features a foam base, ensuring all major pressure areas are adequately supported
    • Made to conform to your body for unique support and comfort
    Cons
    • Comes in a split california king-size, creating a space between the two sleepers, which also makes the bed seem smaller
    • Plush mattress can become lumpy or sag over time
    • 14-inch thickness can tend to appear bulky in some bed frames
For Side Sleepers
An image of Sealy Firm Memory Foam Split California King-Size Foam Base 12.5-Inch Mattress

For both comfort and support, choose the Sealy Firm Memory Foam Split California King-Size Mattress and enjoy a restful night's sleep. With a 12.5-inch thickness, this Sealy mattress will stay in good shape and not sink in even after prolonged use. With a firm comfort level, it is great for people who rest on their back because it offers additional spinal support. This thick mattress is available in a split california king-size, adjusting to individual sleeping preferences.

This Sealy mattress features a stretch knit weave, keeping your mattress looking newer for longer. It features a memory foam construction, allowing you to move around in your sleep and then re-contours to your body after you've settled. With a foam base, this thick mattress properly supports all dominant pressure points of your body. It is equipped with cooling technology, which absorbs heat more efficiently to prevent night sweats. With a design that conforms to your body, it can help alleviate pain in sensitive parts of the body. This thick mattress is suitable to use for adjustable bed bases.

    Pros
    • Firm mattress will support your joints and other sensitive areas
    • Foam base is designs to give provide superior comfort
    • Conforms to the natural curves of your body for superior pressure point relief
    Cons
    • Comes in a split california king-size, creating a space in between the two, which also makes the bed seem smaller
    • Firm mattress can put painful pressure on pressure points
    • 12.5-inch thickness may tend to appear disproportional in some bed frames
Additional Picks
An image of Sealy Firm Pillow Top Split California King-Size DuraFlex Edge System SealyCushion Foam Mattress

For both comfort and support, choose the Sealy Firm Pillow Top Split California King-Size Mattress and enjoy a restful night's sleep. Made with an edge support system, this Sealy mattress gives edge-to-edge comfort and support. It is available in a split california king-size, adjusting to different sleeping preferences. It features a firm comfort level, which will conform to the natural curves of your spine to keep your body properly aligned.

This Sealy mattress is designed with a moisture protection cover and has an allergen protection cover, providing a barrier that prevents allergens from collecting in your mattress. It features a pillow top construction, increasing support and relieves back pain. It has a moisture barrier, which helps prevents moisture build-up. This Sealy mattress has a supportive design, aligning your spine horizontally while sleeping on your side. It features SealyCushion foam. It features SealyCool gel memory foam, which provides deep support, while still keeping you cool at night.

    Pros
    • Firm mattress conforms to the curves of your spine in order to keep your body straight
    • Moisture barrier helps prevents moisture build-up
    • Supportive design ensures proper spinal support and alignment
    Cons
    • Split california king-size means you have to get new fitted sheets, one for each side
    • Firm mattress can put painful pressure on pressure points
    • Pillow top construction is difficult to clean
An image of Natura Organics EcoSoftique Ultra Plush Latex Foam Split California King-Size Mattress

Looking for a low-emission and eco-friendly mattress? Consider the Natura Organics EcoSoftique Ultra Plush Latex Foam Split California King-Size Mattress. This organic mattress is available in a split california king-size, adjusting to individual sleeping styles. It is resistant to dust mites, so your sleeping space will be clean and pest-free. With an ultra plush comfort level, it is good for people who love extra softness.

This hypoallergenic mattress is built with an organic materials, keeping the air free of VOCs. Featuring a latex foam construction, it will naturally combat mold and dust mites. It has a moisture barrier, which reduces wetness build-up. It has pressure point relief technology, ensuring your spine and joints are well supported in order to help with any sensitivity. With eco-friendly fabric, it is built without harmful chemicals, including formaldehyde, phthalates, and other heavy metals.

    Pros
    • Ultra plush mattress is suitable for all types of sleepers who are looking for the perfect mix of softness and support
    • Equipped with pressure point relief technology to enhance comfort and alleviate pain
    • Moisture barrier reduces wetness build-up
    Cons
    • Comes in a split california king-size, creating a space in between the two sleepers, which also makes the bed seem smaller
    • Ultra plush mattress can get lumpy or sag over time
    • Latex foam construction may feel too "spongy" for some
An image of Natura Sensational Ravishing Split California King-Size Latex ActiveFUSION Climate Control Mattress

For a good night's rest and ultimate comfort, select a Natura Sensational Ravishing Split California King-Size Mattress. Built with durable materials, this Natura mattress will remain in excellent condition for years to come. It is available in a split california king-size, adjusting to different sleeping preferences. It has a NaturaWool™ cover, helping to control humidity within the mattress.

This Natura mattress has a latex core, promoting spinal alignment without allowing too much sinking in the mattress. Designed to contour to your body, it provides improved comfort and support. This Natura mattress provides pressure point relief, making it perfect for people who sleep on their stomach. It has ActiveFUSION climate control foam.

    Pros
    • Features a latex core, promoting spinal alignment without allowing too much sinking in the mattress
    • Designed to contour to your body for improved comfort and support
    • Pressure point relief technology reduces pain or stiffness while sleeping
    Cons
    • Comes in a split california king-size, creating a gap between the two sleepers, which also makes the bed feel smaller
An image of Natura Organics EcoFresh Split California King-Size Mattress

Ensuring you don't wake up sweating, the Natura Organics EcoFresh Split California King-Size Mattress is a cool option to consider if you get overheated at night. This cotton mattress is simple to clean and won't retain odors. This Natura mattress is available in a split california king-size, adjusting to individual sleeping styles. With organic materials, it makes the air free of toxins.

Made with exceptional breathability, this organic mattress promotes airflow to prevent mold and mildew from growing. It features a moisture barrier, which decreases moisture build-up. Featuring a ventilated design, it offers added health benefits to upgrade your overall quality of sleep. It is eco-friendly, meaning they are built with biodegradable, natural substances.

    Pros
    • Comes with a cotton cover, making it great for people with allergies and skin sensitivities
    • Features exceptional breathability, preventing premature wear that would otherwise be caused by moisture and heat
    • Moisture barrier eliminates wetness build-up
    Cons
    • Split california king-size means you have to get new fitted sheets, one for each side
An image of Natura Sensational Jubilance Latex Foam Split California King-Size Latex ActiveFUSION Climate Control Mattress

For a better night's rest and ultimate comfort, select a Natura Sensational Jubilance Latex Foam Split California King-Size Mattress. This Natura mattress has increased durability, which allows it to stay in excellent condition for years ahead. It is available in a split california king-size, adjusting to different sleeping styles. It has a NaturaWool™ cover, helping to manage humidity within the mattress. It features a latex foam construction, so it will naturally combat mold and dust mites.

This Natura mattress features a latex core, providing excellent air circulation by its open-cell natural structure. Designed with pressure point relief technology, it decreases tossing and turning at night. It is designed to contour to your body to align joints to eliminate back and joint pain. It has ActiveFUSION climate control foam.

    Pros
    • Features a latex core, providing excellent air circulation by its open-cell natural structure
    • Contours to your body for increase support and comfort
    • Offers pressure point relief, decreasing pain or stiffness while you're sleeping
    Cons
    • Split california king-size means you have to get new bottom sheets, one for each side
    • Latex foam construction may feel too "spongy" for some
An image of Sealy Firm Memory Foam Split California King-Size Foam Base 10-Inch Mattress

For a combination of comfort and support, choose the Sealy Firm Memory Foam Split California King-Size Mattress and enjoy a good night's sleep. With a firm comfort level, this thick mattress is great for your lower back because it protects from collapsing. It has a 10-inch thickness, adding greater durability and extending the lifespan of your mattress. It is available in a split california king-size, adjusting to different sleeping preferences.

This Sealy mattress features a knitted cover, which ensures breathability and easy care. It is designed with a memory foam construction, letting you toss and turn and then re-contours to your body after you've found a comfortable position. Built with a foam base, it adequately supports all dominant pressure areas of your body. Made to conform to your body, it can help prevent pressure in sensitive areas of the body. This Sealy mattress has a supportive design, aligning your spine horizontally while sleeping on your side.

    Pros
    • Firm mattress is perfect for people who require precise spinal alignment
    • Features a foam base, ensuring all dominant pressure points are adequately supported
    • Conforms to your body for special comfort and support
    Cons
    • Split california king-size will require you to purchase new sheets, one for each side
    • Firm mattress can put painful pressure on pressure points
    • 10-inch thickness doesn't provide the best support
An image of Natura Sensational Sublime Soft Foam Split California King-Size Mattress

For both comfort and support, choose the Natura Sensational Sublime Soft Foam Split California King-Size Mattress and enjoy a restful night's sleep. Featuring a soft comfort level, this Natura mattress provides support for your shoulders and hips, making it perfect for those who sleep on their side. It is fire resistant, which is a safe option for your home. It is available in a split california king-size, adjusting to different sleeping styles. It has a cotton cover, which protects the mattress while also adding a bit of cushioning. This Natura mattress features a quilted cover, providing added comfort and cushioning. It features a NaturaWool™ cover, which will manage humidity within the mattress. It has a foam construction, which needs very little upkeep and can last for long periods of time.

    Pros
    • Soft mattress prevents pressure by balancing your body without having your back or joints sink
    • Built with a cotton cover for ultimate coziness and comfort
    • Split california king-size is great for anyone who likes having being able to switch between different types of mattresses
    Cons
    • Comes in a split california king-size, creating a space between the two, which also makes the bed seem smaller
    • Foam construction releases undesirable odors
Here's the Lowdown on Which Split California King-Size Mattress Is Right for You:
Picking Your Mattress Type
Hybrid Mattresses

If you're thinking about getting a hybrid mattress, this split california king-size mattress could be a good choice for you. Constructed with various foam types, these hybrid mattresses provide the perfect level of comfort. They are built with various coil types to offer firm to plush support for extra give. With pressure-point relief, they will ease any pain in your joints. Designed to dissipate heat instead of absorb it, they will enhance your sleep quality by keeping a cool body temperature. Distributing your weight evenly across the mattress, they are less likely to sag with extended use. However, these hybrid mattresses are expensive, so if you're looking for a cheaper 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 split california king-size mattress to help make up your mind. Memory foam mattresses are available in a number of materials, giving you the choice between a variety of levels of comfort and foam densities. They feature pressure-point relief, helping to ease tension in your joints, so you will wake up feeling energized and ready to go. They boast superior motion isolation technology, making them great for restless sleepers, unlike ordinary spring mattresses. However, they aren't waterproof, so you'll want to be careful and make sure that they don't encounter too much moisture. Moreover, these memory foam mattresses can smell a bit like chemicals at first, sometimes lasting up to a couple of weeks before wearing off.

Latex Foam Mattresses

Before you make your purchase, you'll want to decide if a latex foam mattress is right for you. We recommend to start by looking at this split california king-size mattress to help make up your mind. Latex foam mattresses are made with various materials, giving you a range of foam densities to pick from. With pressure-point relief, they will ease any pain in your joints. Latex foam mattresses are good at dissipating heat instead of absorbing it, keeping a cool sleep temperature. They feature a breathable design to allow air to circulate freely, which extends the longevity of the mattress. These mattresses are designed with low VOC materials to not release odorous gases that have been attributed to causing discomfort and nausea. However, they are expensive, so if you're looking for a more affordable mattress, you should consider something else. Additionally, these latex foam mattresses can smell a bit like chemicals at first, sometimes lasting up to many weeks before wearing off.

Deciding Which Comfort Level Is Best for Your Needs
Firm Mattresses

If you're trying to decide on a firm mattress, a split california king-size mattress could be a good choice for you. Firm mattresses deliver proper weight distribution to support your back and joints and other sensitive areas. They are perfect for individuals who tend to sleep on their back and have an indentation load deflection rating of 34-36 pounds. Providing improved circulation, they promote deeper sleep. Something to keep in mind is that they can put strain on specific pressure points, including the hips and shoulders. Another downside is that they might be uncomfortable if you're not used to sleeping on firm surfaces, so it might take a few days to get used to them.

Ultra Plush Mattresses

With only one split california king-size mattress available with an ultra plush feel, you'll want to jump on the opportunity and take a look. Providing additional support, ultra plush mattresses are ideal for people who have back problems or joint pain. These contouring support mattresses adjust to your body for optimal comfort. They are suitable for individuals who tend to sleep on their sides and have a 14-19 pound indentation load deflection rating. One downside is that ultra plush mattresses may be problematic if different people will be sleeping in the bed, causing the surface to sink if there is a significant weight difference. In addition, they are more likely to become a bit lumpy or sink in over time, making them less supportive and comfortable since your body won't be aligned properly. Interested in an ultra plush mattress? Check out this one.

Plush Mattresses

If you're trying to find a plush mattress, a split california king-size mattress could be a good choice for you. These contouring support mattresses adjust to your body for optimal comfort. These mattresses are ideal for those who find it more comfortable to sleep on their back, sides, or stomach and have an indentation load deflection ranking of 19-21 pounds. They provide extra support, helping to alleviate any back problems or joint pain that you're experiencing. Something to keep in mind is that they are more likely to become a bit lumpy or sink in over time, making them less comfortable and supportive since your body won't be aligned well. Also, these plush mattresses may be problematic if various people will be sleeping in the bed, causing the surface to sag if there is a drastic weight difference.

Mattress Thickness: What to Know Before You Choose Your Split California King-Size Mattress
10-12 Inch Mattresses

There are only two split california king-size mattresses with a thickness of 10-12 inches. These thick mattresses are standard size, so you can rest assured knowing that they'll be able to fit in almost any bed frame. They are less likely to sag, ensuring that you sleep in the correct posture to prevent back pain. These 10-12 inch mattresses are suitable to use with standard-size sheets, so it will be easy to find linens that fit. They are built with a sturdy build, making them more durable and able to sustain more weight. A potential downside is that they are higher off the ground, so getting into and out of bed is harder than it would be with a thinner mattress. Take a look at this comfortable split california king-size mattress if you want to get a 10-12 inch mattress.

12-14 Inch Mattresses

If you're looking for a supportive and comfortable split california king-size mattress, you might want to think about getting a 12-14 inch mattress. These 12-14 inch mattresses are suitable to use with standard-size sheets, so it will be easy to find linens that fit. They are less likely to sag, ensuring that you sleep in the correct posture to prevent back pain. They are built with a solid build, making them more durable and able to sustain more weight. A potential downside is that they have poor temperature control, so if you get warm at night, you might want to consider a thinner mattress with better temperature control. Look at this awesome split california king-size mattress if you want to get a 12-14 inch mattress.

14-16 Inch Mattresses

There's only one split california king-size mattress with a thickness of 14-16 inches. These 14-16 inch mattresses are built with a sturdy build, making them more durable and able to sustain more weight. They are less likely to sag, ensuring that you sleep in the correct posture to prevent back pain. Something to keep in mind is that they are thicker than most mattresses, so finding sheets that will cover the top and sides is much more difficult. These are just a few facts to help you get a better idea of what kind of split california king-size mattress is ideal for you.