Best California King-Size Innerspring Mattresses


Our review process

The quest for finding the perfect mattress is over. We collected information on over 2000 mattresses and used our AI engine to score each one 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 California king-size innerspring mattresses. Consider this guide your one-stop-shop for everything you need to know about California king-size innerspring mattresses.

Before deciding on your new California king-size innerspring mattress, there are some things we think you should consider. Moving heat away from your body, innerspring mattresses will allow you to keep cool during a night's rest. They feature various kinds of coils, so you can decide between plush to firm comfort. Designed with firm edges, they will maintain their even surface for ideal support over time. These breathable innerspring mattresses will provide proper airflow and ventilation, preventing any moisture build-up. They are made with various materials, giving you a range of foam densities to pick from. However, they have poor motion isolation, making them a bad fit for light sleepers. Moreover, they sometimes make a lot of noise, potentially disturbing your sleep every time you or your partner moves.

These California king-size mattresses measure 72" X 84" and are ideal for master bedrooms. They are built to spaciously accommodate couples, offering extra space for you to spread out. With added length, they are good for taller adults. However, California king-size mattresses are large and heavy, making them hard to transport and flip. Also, they are not great for small areas, since they can make the room look somewhat cluttered.

Best Overall Score
An image of Priage OS-BNSM-10CK Firm Innerspring California King-Size Coil Springs 10-Inch Mattress

The Priage Firm Innerspring California King-Size Mattress is perfect for people who frequently have allergies. This Priage mattress has a firm comfort level, which promotes a deeper sleep. Available in a California king-size, it offers four extra inches in length, making it ideal for taller individuals. This hypoallergenic mattress ensures a quality night's sleep. It has a 10-inch thickness, which ensures that it will resist wear and tear and be able to hold a lot of weight.

Featuring an innerspring construction, this Priage mattress is able to support numerous sleepers, including people with back pain. It features a quilted cover, providing added comfort and cushioning. Made with antimicrobial materials, this Priage mattress stops the spread of bacteria. It features green tea extract and castor natural seed oil infused foam to maintain a fresh sleeping environment with antimicrobial and anti-odor qualities.

    Pros
    • Firm mattress will provide the support necessary for spinal alignment
    • Built with antimicrobial materials to minimize the chances of bacteria surviving
    • Comes rolled, making it easy to place your mattress on the bed of your choice
    Cons
    • California king-size reduces the amount of horizontal sleeping space
    • Firm mattress can put painful pressure on pressure points
    • 10-inch thickness doesn't provide the best support
Runner Up
An image of Natura Green Spring Liberty Ultra Plush Innerspring California King-Size 5-Zone Pocket Coil Mattress

Looking for a low-emission and eco-friendly mattress? Consider the Natura Green Spring Liberty Ultra Plush Innerspring California King-Size Mattress. This Natura mattress is available in a California king-size, reducing the amount of horizontal sleeping space. It has a supportive design, aligning your spine horizontally when sleeping on your side. With an ultra plush mattress, it is suitable for those who love extra comfort.

This Natura mattress is eco-friendly, so you can greatly decrease your carbon footprint. Featuring an innerspring construction, it will adapt easily to your body. It is built with a tencel cover, which is naturally resistant to dust mites and other bacteria. This Natura mattress features a NaturaWool™ cover, creating a breathable, moisture-free, and temperature controlled environment.

    Pros
    • Ultra plush mattress allows for a much softer sleeping surface
    • Comes with a tencel cover, making it one of the most environmentally-friendly fabrics
    • Supportive design ensures proper spinal support and alignment
    Cons
    • California king-size reduces the amount of horizontal sleeping space
    • Ultra plush mattress can become lumpy or sag over time
    • Innerspring construction does not provide adequate pressure point relief
For Side Sleepers
An image of Sealy Posturepedic Firm Innerspring California King-Size 13-Inch Mattress

For a combination of comfort and support, choose the Sealy Posturepedic Firm Innerspring California King-Size Mattress and enjoy a restful night's sleep. Available in a California king-size, this Sealy Posturepedic mattress provides extra space from top to bottom. It has an edge support system, adding resistance around the edges of the mattress. With a firm comfort level, this thick mattress is perfect for people who sleep on their back because it offers exceptional spinal support. It has a 13-inch thickness, which may appear bulky in some bed frames. It features an innerspring construction, adjusting well to your body shape. This thick mattress helps reduce tossing and turning at night, which drastically improves your quality of sleep. It offers pressure point relief, reducing the stress of different areas of the body.

    Pros
    • Firm mattress helps your body maintain good posture to keep your back from curving
    • Helps eliminate tossing and turning at night, improving your quality of sleep
    • Designed with pressure point relief technology for additional spinal and joint support and comfort
    Cons
    • California king-size reduces the amount of horizontal sleeping space
    • Firm mattress can put painful pressure on pressure points
    • 13-inch thickness may tend to appear too large in some bed frames
Additional Picks
An image of Sealy Posturepedic Firm Innerspring California King-Size Mattress

For a better night's rest and ultimate comfort, choose a Sealy Posturepedic Firm Innerspring California King-Size Mattress. Available in a California king-size, this Sealy Posturepedic mattress provides additional space from top to bottom. It has an edge support system, adding resistance around the edges of the mattress. With a firm comfort level, it provides superior support to prevent soreness. Designed with an innerspring construction, it adjusts well to your body. Designed with pressure point relief technology, it helps to relax tender muscles and joints. This Sealy Posturepedic mattress helps eliminate tossing and turning at night, which increases the quality of your sleep.

    Pros
    • Firm mattress provides additional support to prevent the body from sinking
    • Helps eliminate tossing and turning at night, significantly improving your quality of sleep
    • Offers pressure point relief, minimizing pain or stiffness while you're sleeping
    Cons
    • Comes in a California king-size, reducing the width of sleeping space
    • Firm comfort level can put painful pressure on pressure points
    • Innerspring construction can result in premature sagging of the material
An image of Sealy Posturepedic Plush Innerspring California King-Size 13-Inch Mattress

For a good night's sleep and endless comfort, select a Sealy Posturepedic Plush Innerspring California King-Size Mattress. This Sealy Posturepedic mattress is available in a California king-size, reducing the width of sleeping space. It features a 13-inch thickness, so after long periods of time the mattress won't collapse around the edges. Featuring a plush comfort level, it is perfect for those who like extra comfort. It has pressure point relief technology, so your body is supported to diminish any discomfort. With a design that minimizes tossing and turning, this thick mattress will give you the sleeping environment you need for uninterrupted sleep. It features an innerspring construction, which adapts easily to your body shape. It has an edge support system, adding resistance around the edges of the mattress.

    Pros
    • Plush mattress is an ideal option for those looking for a soft surface with added cushioning
    • Helps reduce tossing and turning at night, significantly improving your quality of sleep
    • Designed with pressure point relief technology for additional spinal and joint support and comfort
    Cons
    • Comes in a California king-size, reducing the width of sleeping space
    • Plush mattress can become lumpy or sag over time
    • 13-inch thickness can appear too large in some bed frames
An image of Sealy Posturepedic Firm Innerspring California King-Size 12-Inch Mattress

For a better night's rest and endless comfort, select a Sealy Posturepedic Firm Innerspring California King-Size Mattress. This Sealy Posturepedic mattress features pressure point relief technology, so your body is well supported to diminish any discomfort. It helps reduce tossing and turning at night, which improves your quality of sleep. With an innerspring construction, it will be able to support a variety of sleepers, including stomach sleepers.

This Sealy Posturepedic mattress features a 12-inch thickness, so your mattress won't sag in the middle or collapse on the sides. Featuring a firm comfort level, it provides excellent spinal support, which is good for people who enjoy sleeping on their back. It is available in a California king-size, so it will reduce the amount of horizontal sleeping space. It is built with an edge support system, adding resistance around the edges of the mattress.

    Pros
    • Firm mattress promotes a deeper sleep
    • Helps eliminate tossing and turning at night, improving your quality of sleep
    • Provides pressure point relief, reducing the stress of different areas of the body
    Cons
    • California king-size reduces the amount of horizontal sleeping space
    • Firm mattress can put uncomfortable pressure on pressure points
    • 12-inch thickness may appear disproportional in some bed frames
An image of TFS CALMNESTCKFJ Firm Innerspring California King-Size 8-Inch Mattress

For serious comfort and a restful night's sleep, select the TFS Firm Innerspring California King-Size Mattress. This cotton mattress is easy to clean and won't retain odors. Available in a California king-size, this organic mattress offers extra space from top to bottom. It features an 8-inch thickness, so the mattress won't dip in the center or collapse around the edges. It features a firm comfort level, providing support to the lumbar region in any sleeping position.

Featuring an innerspring construction, this TFS mattress is able to support numerous sleepers, including people with back pain. Using organic materials, it decreases the environmental impact due to it being built with sustainable materials. It is designed with a jacquard cover and has a chemical-free cover, so it won't emit dangerous chemicals that can negatively impact your health. This TFS mattress features a knitted cover, keeping its shape for easy care. It has a supportive design, aligning your spine horizontally when sleeping on your side.

    Pros
    • Firm mattress is great for people who need precise spinal alignment
    • Comes with a cotton cover, keeping you cool in the hot summer nights by absorbing the heat from your body
    • Supportive design ensures proper spinal support and alignment
    Cons
    • Comes in a California king-size, reducing the width of sleeping space
    • Firm mattress can put painful pressure on pressure points
    • 8-inch thickness doesn't provide the best support
An image of Primo International COME-CKYX1502 Innerspring California King-Size 12-Inch Mattress

For a better night's rest and ultimate comfort, opt for a Primo International Innerspring California King-Size Mattress. Available in a California king-size, this thick mattress offers extra room from bottom to top. Made to conform to your body, it provides maximum comfort and support to reduce pressure in sensitive areas of the body. This Primo International mattress has a supportive design, aligning your spine horizontally while sleeping on your side. It has a 12-inch thickness, keeping your mattress functional for years. It features an innerspring construction, adapting easily to your body.

    Pros
    • Made to conform to your body for exceptional pressure point relief
    • Supportive design ensures proper spinal support and alignment
    • Comes rolled, making it easy to place your mattress on the bed of your choice
    Cons
    • California king-size reduces the amount of horizontal sleeping space
    • 12-inch thickness may appear disproportional in some bed frames
    • Innerspring construction does not provide sufficient pressure point relief
An image of TFS Innerspring California King-Size Mattress

Looking to sleep sweetly in a mattress made free of harsh chemicals? Go for the TFS Innerspring California King-Size Mattress. This cotton mattress is simple to care for and won't hold onto odors. Available in a California king-size, this organic mattress offers four extra inches in length, making it great for taller individuals. With an innerspring construction, it will be able to support a variety of sleepers, including people with back pain. It has a knitted cover, keeping its shape for easy care. It is designed with a jacquard cover and features a chemical-free cover, making it a safe and healthier choice for your home. Using organic materials, it will be made from sustainable materials, which are kinder on the environment. It has a supportive design, aligning your spine horizontally when sleeping on your side. It is eco-friendly, promoting a healthier indoor air quality.

    Pros
    • Features a cotton cover, protecting the mattress while also adding a bit of cushioning
    • Supportive design ensures proper spinal support and alignment
    • California king-size is ideal for taller people looking to find a comfortable bed that fits them
    Cons
    • Comes in a California king-size, reducing the amount of horizontal sleeping space
    • Innerspring construction does not provide adequate pressure point relief
An image of Natura Green Spring Liberty Firm Innerspring California King-Size Foam Base Mattress

For a combination of comfort and support, choose the Natura Green Spring Liberty Firm Innerspring California King-Size Mattress and enjoy a restful night's sleep. This Natura mattress is fire resistant, which is a safe choice for your bedroom. It is built with a tencel cover, making it one of the most environmentally-friendly fabrics. Available in a California king-size, this Natura mattress offers extra space from bottom to top. With a firm comfort level, it provides the support necessary for spinal alignment.

This Natura mattress has a NaturaWool™ cover, which helps to manage humidity within the mattress. Designed with an innerspring construction, it adjusts well to your body. This Natura mattress features a stretch knit weave, keeping your mattress looking newer for longer. It has a foam base and includes pre-compressed coils, giving the mattress with a stronger edge durability to allow for uniform comfort. This Natura mattress has a supportive design, aligning your spine horizontally when sleeping on your side.

    Pros
    • Firm mattress will provide the support required for spinal alignment
    • Comes with a tencel cover, making it one of the most environmentally-friendly fabrics
    • Features a foam base, ensuring all main pressure points are adequately supported
    Cons
    • California king-size reduces the amount of horizontal sleeping space
    • Firm comfort level can put painful pressure on pressure points
    • Innerspring construction tends to be very heavy and hard to move around
Still Need Some Help Narrowing Down Your Options? Here's Some Additional Information to Consider:
Mattress Thickness: Stuff to Know
8-10 Inch Mattresses

There are only two California king-size innerspring mattresses with a thickness of 8-10 inches. Less likely to cave in, these mattresses will provide ideal support, even after prolonged use. They are standard size, so they will fit in most bed frames, unlike very thick mattresses. These mattresses are suitable to use with standard-size sheets, making it easier to make your bed. A potential downside is that they tend to wear out quickly, so they won't last long before starting to deteriorate. On top of that, these mattresses might get indentations if there's too much weight put on them, making them less than ideal for people who share their bed. If you think an 8-10 inch mattress is a good choice, check out this one.

10-12 Inch Mattresses

There are only two California king-size innerspring mattresses with a thickness of 10-12 inches. These mattresses have a solid design, making them more durable and able to sustain more weight. With a standard thickness, they can fit in nearly all bed frames. They are suitable to use with standard-size sheets, so it will be easy to find linens that fit. Less likely to cave in, they will provide ideal support, even after long-term use. Something to consider is that they can be quite heavy, so you'll need at least two people to flip them over. If you think a 10-12 inch mattress is a good choice, check out this one.

12-14 Inch Mattresses

If you're looking for a comfortable and supportive California king-size innerspring mattress, you might want to consider 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 have a sturdy construction, so they can hold the weight of two people. They are less likely to cave in, so the surface will remain level to ensure adequate support over time. However, they are higher off the ground than thinner mattresses, so getting into and out of bed is harder than it would be with a thinner mattress. If you think a 12-14 inch mattress is a good choice, here's one to take a look at.

Understanding Which Comfort Level Is Best for Your Needs
Firm Mattresses

If you want a firm mattress, a California king-size innerspring mattress might be a good choice for you. Firm mattresses evenly distribute your body weight to support your joints and other sensitive areas. They are designed with an indentation load deflection rating of 34-36 pounds and are perfect for back sleepers. They encourage circulation and blood flow, so you can enjoy a deeper and more restful sleep. A potential downside is that they can put strain on specific pressure points, so if you want a mattress that relieves pain in pressure points, this is not the mattress for you. Also, firm mattresses can be uncomfortable if you're not used to sleeping on hard surfaces, so it might take some time to get used to them.

Ultra Plush Mattresses

Interested in getting an ultra plush mattress? A California king-size innerspring mattress might be a good choice for you. With extra support, these mattresses are a better choice for ensuring that any back problems or joint pain that you're experiencing don't get worse. They have a 14-19 pound indentation load deflection rating and are perfect for those who sleep on their sides. These contouring support mattresses adjust to your body shape for enhanced comfort. However, ultra plush mattresses may be problematic if various people will be sleeping in the bed, causing the surface to sink if there is a drastic weight difference. Another downside is that the surface will become softer with time, so they'll wear down faster than other types of mattresses and you'll probably want to replace them sooner.

Medium Firm Mattresses

If you want a medium firm mattress, a California king-size innerspring mattress could be a good choice for you. Medium firm mattresses deliver proper weight distribution, supporting your joints and other vulnerable areas. They have a 29-31 pound indentation load deflection rating and are suitable for those who switch from their back to side. They are a win-win situation, catering to couples that have one individual who likes to sleep on their side and the other on their back or stomach. One downside is that these mattresses can become lumpy or sag with extended use, so your body won't be properly supported while sleeping.