Best California King Size Mattresses of 2025

The FDW Gel Memory Mattress comes conveniently packaged in a box, making it easy to set up in your home. You can enjoy the fun of watching it expand after unboxing. This mattress is crafted with high-quality gel memory foam that promotes airflow, ensuring a cool and comfortable night’s sleep. With a combination of soft gel memory foam and a supportive base, it offers luxurious comfort while reducing pressure points. No matter how you sleep—whether on your side, back, or stomach—you'll find that this mattress provides the ideal support for a restful night.

The Zinus Green Tea Mattress offers a restful night’s sleep with its innovative zoned pressure relief technology. This feature helps reduce discomfort, allowing you to wake up feeling refreshed. The pressure-relieving memory foam molds to your body shape, which enhances blood circulation and eases joint stress. Additionally, the mattress is infused with natural green tea and purified charcoal, keeping it fresh for many nights. Made from certified safe materials, you can rest easy knowing that harmful chemicals are not present, promoting a healthier sleep environment.

The EGOHOME Memory Foam Mattress is designed with your comfort in mind. Its cooling fabric, combined with advanced graphene technology, helps regulate your body temperature for a restful night's sleep. The top layer features Cooper gel aerofuion memory foam, which manages moisture and odors, promoting a cleaner sleep environment. Additionally, the mattress is CertiPUR-US certified and endorsed by the International Chiropractors Association, ensuring safety and durability. With a convenient mattress-in-a-box delivery, setting up your new mattress is hassle-free. Just remember to let it expand for 12 hours before use for optimal comfort.

The DIFAME California King Mattress offers several impressive features to enhance your sleep experience. Its motion isolation technology helps reduce disturbances from movement, allowing you to enjoy uninterrupted rest even if your partner shifts during the night. The memory foam layers are designed to contour to your body, providing excellent pressure relief and support, which can help alleviate back pain. With enhanced edge support, this mattress prevents sagging and ensures stability, making it a durable choice. Additionally, it comes conveniently packaged in a box, making setup easy and hassle-free.

The EEN EEN SLEEP Cal King Mattress is designed for a comfortable night's rest. With its independent pocket springs and multiple layers of memory foam, it conforms to your body, helping to alleviate soreness and fatigue. The strong edge support ensures that you won't feel like you're rolling off the bed, providing stability and absorbing movement from your partner. Its soft, silky fabric enhances your sleep experience by keeping you cool and comfortable throughout the night. Plus, the mattress is conveniently packaged in a box for easy transport, making setup a breeze.

The LETMOON Hybrid Mattress offers a convenient bed-in-a-box design, making setup simple and hassle-free. After unboxing, allowing the mattress to expand for 24-72 hours ensures optimal comfort. This medium-firm mattress combines memory foam and springs for excellent support, accommodating up to 500 pounds. Its innovative design minimizes noise from movement, so you can enjoy uninterrupted sleep even if your partner tosses and turns. Additionally, the durable materials used in this mattress promote longevity, and the breathable surface helps keep you cool throughout the night, making it ideal for hot sleepers.

The Twolike King Gel Mattress offers a range of features designed to enhance your sleep experience. Its removable and washable cover makes it easy to maintain a clean sleeping environment, which is essential for your health. With medium firmness, this mattress provides balanced support, accommodating various sleeping positions for maximum comfort. The gel memory foam works to relieve pressure points, ensuring you wake up refreshed. Additionally, the mattress is easy to set up, expanding within 24-72 hours after being unboxed, so you can enjoy your new bed without hassle.

The SUAYEA California King Mattress offers exceptional comfort and support for a restful night's sleep. With its advanced pocketed spring system, you can enjoy optimal motion isolation, minimizing disturbances when your partner moves. The luxurious top layer combines soft, skin-friendly fabric with high-density foam, ensuring a cozy and quiet sleeping experience. Additionally, the robust support layer prevents sagging, extending the mattress's lifespan while accommodating up to 1,000 pounds. This mattress is designed to fit standard California King beds, and it expands quickly after unpacking, so you can start enjoying it in no time.

The DINBooonLUX King Mattress offers exceptional comfort with its hybrid design that combines cooling gel memory foam and individually wrapped pocket coils. This unique combination provides the support you need while ensuring a restful night’s sleep. Its breathable knit top allows for airflow, helping to keep you cool and dry throughout the night. The mattress also features motion isolation technology, which means you won’t be disturbed by your partner’s movements. With high-quality materials that are free from harmful substances, this mattress is a healthier choice for your sleeping environment.

The LETMOON Cal King Mattress offers a blend of comfort and support tailored to your sleeping needs. Its design features independent pocket springs and memory foam that work together to distribute your weight evenly, providing targeted support for a cozy night’s sleep. You’ll appreciate the motion isolation, which minimizes disturbances from your partner’s movements. Additionally, the breathable fabric helps regulate temperature, keeping you cool and dry throughout the night. With its versatile surface, this mattress caters to all sleeping positions, ensuring you wake up refreshed and ready for the day.