Unbiased Split California King-Size Memory Foam Mattresses Review


Our review process

We've already done all the grunt work researching split california king-size memory foam mattresses. That way, you don't have to pour over confusing infographics about choosing the perfect one for you. By reading this article, you'll have an excellent grasp on what types of mattresses are available on the market, so you can confidently purchase a mattress that will ensure comfortable sleep for years to come.

After reviewing split california king-size memory foam mattresses, we've gathered the important information to tell you about. These mattresses are constructed with various foam types, giving you just the right amount of support that you need. With pressure-point relief, they will eliminate any tension in your joints. However, they can smell a bit like chemicals at first, so you should air them out for at least 24 hours before putting sheets on. On top of that, they aren't waterproof, so you'll want to be careful and make sure that they don't encounter too much moisture.

Built with two twin XL size mattresses joined by a connector, these mattresses accommodate you and your partner's different sleep styles. They are suitable for couples, eliminating motion transfer completely. These split California king mattresses measure 72" X 84" and are perfect for master bedrooms. With added length, they are great for tall adults who need additional leg space.

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 rest and ultimate comfort, choose a Sealy Firm Memory Foam Split California King-Size Mattress. Designed with cooling technology, this Sealy mattress regulates body temperature so you won't get too hot at night. It features a firm comfort level, providing additional support to keep the body from sinking. With a design that conforms to your body, it can help prevent pain in sensitive areas of the body. With an 11.5-inch thickness, this Sealy mattress will stay in good shape and not sink in even after prolonged use. It is available in a split california king-size, adjusting to different sleeping preferences. With a foam base, it properly supports all dominant pressure points of your body. Featuring a memory foam construction, this Sealy mattress accommodates every possible sleeping position. It features a moisture protection cover, extending the performance of your mattress by protecting against spills or water damage.

    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 Firm Memory Foam Split California King-Size Foam Base 12.5-Inch Mattress

For a better night's sleep and endless comfort, select a Sealy Firm Memory Foam Split California King-Size Mattress. This Sealy mattress features a firm comfort level, which will provide support to your body for all sleeping positions. It is designed to conform to your body, so you will have optimal alignment as your shoulders and hips will sink more into the bed. With cooling technology, it keeps you cool at night by dissipating heat away from your body. It has a 12.5-inch thickness, so it won't sag, sink, or leave body impressions after long periods of time. It is built with a foam base, so all main pressure areas are sufficiently supported. It is available in a split california king-size, creating a gap between the two sleepers, which also makes the bed feel smaller. It has a memory foam construction, which will let you toss and turn and then re-contours to your body after you've found a comfortable position. It features a stretch knit weave, keeping your mattress looking newer for longer. It 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
For Side Sleepers
An image of Sealy Firm Memory Foam Split California King-Size Foam Base 10-Inch Mattress

If you want to make sure that you don't wake up with tension in your back, the Sealy Firm Memory Foam Split California King-Size Mattress could be an excellent option. This thick mattress is available in a split california king-size, adjusting to individual sleeping preferences. It is designed with a foam base, so all dominant pressure points are well supported. With a design that conforms to your body, it can help prevent pressure in sensitive parts of the body. This thick mattress has a supportive design, aligning your spine horizontally while sleeping on your side. With a firm comfort level, it provides overall support of your body for deep and restful sleep. Featuring a 10-inch thickness, this Sealy mattress will stay in good shape and not sink in even after prolonged use. It is designed with a memory foam construction, letting you move around in your sleep and then re-contours to your body after you've settled. This Sealy mattress features a knitted cover, keeping its shape for easy care.

    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
Still Need Help Narrowing Down Your Options? Here's Some Additional Information to Consider:
Mattress Thickness: Stuff to Know
10-12 Inch Mattresses

There are only two split california king-size memory foam mattresses with a thickness of 10-12 inches. These mattresses are suitable to use with standard-size sheets so that you can easily find linens and other bed accessories that fit. They have a strong construction, making them more durable and able to sustain more weight. Less likely to cave in, they will provide substantial support, even after long-term use. With a standard thickness, they will fit on most bed frames unlike very thick mattresses. However, these mattresses are higher off the ground, so they are more difficult to get into and out of. If you think a 10-12 inch mattress is a good choice, check out this one.

12-14 Inch Mattresses

There's only one split california king-size memory foam mattress with a thickness of 12-14 inches. These mattresses have a solid build, making them more durable and able to sustain more weight. They are suitable to use with standard-size sheets, which means you will never have trouble finding sheets that fit. They are less likely to sag, so the surface will remain flat to ensure adequate support. Something to keep in mind is that they have poor temperature control, trapping heat and making it hotter at night. These are a few facts to help you decide what kind of split california king-size memory foam mattress you need.