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Updated: 25 Nov 2025

10 Best Bed California King Memory Foam Mattress

#1
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Sealy TrueForm 2" Memory Foam Mattress Topper, California King

Brand: Sealy
$61.21
⭐ 4.7
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    2" CALIFORNIA KING MEMORY FOAM TOPPER: Makes it easy to transform and extend the life of any old mattress or even amplify the comfort of a new one to help you get the blissful night of sleep you deserve
  • WEIGHTLESS COMFORT: Stays true to the needs of side and back sleepers of all body types with a weightless comfort that will have you feeling like you're sleeping on cloud 9
  • HIGHLY-ADAPTIVE FOAM: Gel-infused memory foam is designed to hug the contours of your body while still allowing for more flexibility than firmer memory foam mattress toppers
  • MOISTURE-WICKING FABRIC: Helps keep you cool and dry as you sleep so you can wake up feeling refreshed and ready to start the day
  • EASY TO SET UP: Comes conveniently compressed in a box for easy transport and set up - simply unbox, unroll, and unwind the mattress and enjoy
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#2
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Giselle Bedding King Mattress Bed Mattresses Cool Gel Memory Foam 36cm Thickness, with 7-Zone Spring System and Breathable Euro Top, 5Yrs Warranty, Medium Firm, White with Vacuum Packed

Brand: Giselle Bedding
$389.95
⭐ 4.2
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    MEDIUM FIRM MATTRESS: Made of three layers of high-density foam to provide you a medium firm comfortable sleeping experience.
  • 7-ZONED SUPPORT: The innovative 7-zoned EvenZon pocket springs system provides comprehensive support with zero partner disturbance.
  • DOUBLE-SIDED DESIGN: Egg-shaped foam on one side and cool gel memory foam on the other for you to choose the firmness that is just right for you.
  • HYGIENICALLY CONSTRUCTED: The mattress is hygienically constructed to free your body from allergens and dust mites.
  • 15-YEAR WARRANTY: The mattress comes with a long 15-year warranty so that you can be assured of comfortable sleep well into the future.
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#3
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Zinus King Mattress 3 Zone Hybrid Deluxe Cool Adaptive Fabric Copper Memory Foam Pocket Spring Bed Comfort

Brand: Zinus
$549.00
⭐ 4.4
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    SUPPORT & COMFORT: designed with independently encased tempered steel coils and graphite memory foam for maximum support, heat dissipation and relieving pressure points along your neck, shoulders, back and hips. You'll enjoy lightly-conforming comfort on top and stable, deep-down support below for restorative sleep.
  • 3-ZONE DESIGN: the unique construction of the Hybrid mattress provides better blood circulation and total relief for any joint and muscle pains or back problems. Adaptive fabric cover creates a cooling effect as it triggers evaporation of excess moisture, while copper-infused memory foam eliminates excess heat, delivering a one-two punch of cooling for sleep.
  • COOLING & BREATHABILITY: An innovative adaptive quilt cover is designed to move both heat and moisture away from the surface of the mattress, to help keep your mattress fresh. A top layer of memory foam is infused with antimicrobial copper and natural green tea which eliminates bacteria and bed bugs and neutralizes odors for cleaner sleep
  • Reinforced spring system provides stronger edge support, resists sagging & rolling-off. No matter when you sleep alone or next to a partner, the Hybrid mattress is the perfect blend of comfort and motion separation for an undisturbed sleep
  • SIZES & 10 YR WARRANTY: Available in Single, Double, Queen and King Size Mattress. Adjustable Base Friendly. Worry free 10 year limited warranty (Global Warranty)
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#4
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Zinus Cloud Cool King Mattress, 25cm Ultra Cooling 7 Zone Gel Green Tea Memory Foam - Medium Plush Feel Bed, Cool-to-Touch Soft Knit Cover, Pressure Relieving, CertiPUR-US Certified, Mattress in A

Brand: Zinus
$469.00
⭐ 4.1
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    7-ZONE PRESSURE RELIEF COOLING GEL INFUSED MEMORY FOAM - A top layer of ultra-cooling gel memory foam paired with our patented 7-zone ventilation system for extra airflow and a stretchable, soft-knit fabric cover with a cool to the touch feeling improves ventilation and offers more air-flow
  • ULTRA PERFORMANCE Optimized for perfectly temperature-regulated sleep, this mattress features gel-infused memory foam and an upgraded Cool-to-Touch Soft-Knit cover to keep you cool and comfortable with three times the cooling benefits.
  • CERTIPUR-US CERTIFIED FOAM - Only the Highest Quality of Foam is used in Zinus Mattresses. The foam is CertiPUR - US Certified for durability, sustainability, performance and content.
  • EXPERTLY PACKAGED - Our technology allows this mattress to be efficiently compressed into one box thats easily shipped and maneuvered into the bedroom; simply unbox, unroll and this mattress does the rest, expanding to its original shape within 72 hours
  • Worry-free 10 year limited warranty included; single mattress supports a maximum weight of 130 kgs, while all other sizes can support up to 230 Kgs.
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#5
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SINWEEK 3 Inch Gel Memory Foam Mattress Topper Ventilated Soft Pressure Relieve Mattress Pad, Breathable Bed Topper, CertiPUR-US Certified, California King Size

Brand: SINWEEK
$171.31
⭐ 4.7
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    GEL MEMORY FOAM MATERIAL: Our memory foam mattress topper readily conforms to the curves and shape of your body, distributes weight evenly to alleviate pressure points for better sleep.
  • MORE COMFORTABLE SLEEP: The gel memory foam material used in our mattresses reduces heat and improves the airflow to refresh the gas permeability; add to the mattress for custom comfort.
  • SOFT BUT NOT FOLDABLE: our mattress is soft, do not roll up and store too long after opening, and do not put items on top, which will increase the risk of tearing.
  • CertiPUR-US CERTIFIED: Our Gel Swirl memory foam topper is made of CertiPUR-US certified materials. The Gel Swirl memory foam topper meets or exceeds standards for content, emissions, and durability.
  • BEFORE FIRST USE: leave the memory foam flatly in a well ventilated area for 48-72 hours until its fully expanded. In addition, we offer a three-year and 24-hour manual customer service to ensure your after-sales service..NOTE: The softness of the Mattress Topper is influenced by the temperature. In the cold winter Mattress Topper will become harder.
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#6
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Linenspa 3 Inch Gel Infused Memory Foam Mattress Topper – Cooling Mattress Pad – Ventilated and Breathable – CertiPUR Certified - California King

Brand: Linenspa
$193.58
⭐ 4.7
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    PRESSURE RELIEVING MEMORY FOAM: Plush gel infused memory foam conforms to your curves for personalized comfort that hugs you to sleep; use it to rejuvenate an old mattress, soften a too-hard mattress, or prolong the life of your mattress
  • COOLING GEL INFUSIONS: This topper is infused with a cooling gel that helps capture and distribute heat to keep you cool and comfortable while you sleep
  • MULTIPLE PROFILE OPTIONS: Choose your own level of comfort with a plush 2-inch profile or an even plusher 3-inch profile, either way you get the same pressure relieving memory foam feel
  • EASY SETUP: Your gel infused memory foam mattress topper arrives compressed, all you have to do is open the package, unroll it, and watch it expand fully in 24-48 hours
  • QUALITY MATERIALS: Sleep soundly knowing your mattress topper is CertiPUR-US Certified, meaning we only use the highest quality materials to ensure longevity and safety; 3-year limited warranty
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#7
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Giselle Bedding 7 Zone King Memory Foam Mattress Topper, Foldable Bed Mattresses Toppers Protector Bamboo Cool Cover Sleeping Mat Home Bedroom, 5cm Thick Removable Washable White Blue

Brand: Giselle Bedding
$94.95
⭐ 4.1
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    ENHANCED COMFORT: It features a 7-zone contoured design with an innovative open cell structure for better heat dissipation and yet feels warm at the right temperature
  • INCREASED AIR CIRCULATION: The memory foam topper also allows for better air circulation for a well-ventilated support under your body.
  • LOFTY SOFTNESS: With a high-density 100% visco elastic foam filling, the topper provides a lofty cushion of softness.
  • OVER 1000 SUPPORTING POINTS: The highly breathable 5cm thick topper is also designed to shape according to the contours of your body for an even weight distribution with over 1000 supporting points.
  • REMOVABLE AND WASHABLE COVER: Not least, the topper is housed in a removable and washable zipped jacquard knitting fabric cover for a premium look and appearance.
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#8
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LUCID Memory Foam Soft and Breathable-Machine Washable Mattress Topper Cover, California King, White

Brand: LUCID
$83.02
⭐ 4.2
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    An integrated elastic band sewn into the cover helps secure the topper in place to eliminate shifting or unwanted movement
  • Constructed out of soft and breathable knit material to ensure optimal comfort
  • The 18-inch skirt style design adds length and coverage to your bed and makes installation and removal quick and easy
  • This cover is machine washable and dryer safe on low; the easy-to-clean solution to protect your topper
  • Available in a variety of different sizes: California King, King, Queen, Full, Twin, Twin XL
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#9
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Sleep Innovations 3 Inch Cooling Gel Infused Memory Foam Mattress Topper, California King Size, Cool Comfort, Medium Support

Brand: Sleep Innovations
$128.55
⭐ 4.7
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    Cool 3 Inch California King Size Mattress Topper: Cooling gel memory foam reduces heat and improves airflow for a cool feel and refreshing breathability; Add to your mattress for a medium feel
  • Durable And Responsive: Toppers offer personalized comfort and can help improve and extend the life of your mattress; Sleep better and longer as memory foam relieves pressure and provides all night support
  • Instantly Improve Any Mattress: Relieve pressure points, enjoy deeper sleep, and wake up feeling refreshed with our line of memory foam, gel memory foam, dual layer, and pillow top mattress toppers
  • Made In The USA: Our memory foam mattresses, mattress toppers, and pillows are all hypoallergenic and CertiPUR-US certified, offering you high quality materials for high quality sleep
  • Committed To Great Sleep: We invented the memory foam mattress in a box and we continue to innovate restorative foams and fabrics to give you the best night's sleep; This topper comes with a 5 year warranty
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#10
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Sweetlove Mattress, King Gel Memory Foam Mattress for Cooling Sleep, Pressure Relief & Motion Isolation, Euro-top Bed Mattresses with Medium Soft

Brand: Sweetlove
$287.10
⭐ 4.1
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    Cooling Comfort for Restful Sleep: The Sweetlove king mattress features a breathable design, with an outer cover to dissipate excess heat. The interior uses memory foam, egg foam, and lavender-infused memory foam to enhance airflow, ensuring a comfortably cool night's sleep while enjoying the soothing aroma of lavender for improved sleep quality.
  • Certified Safety and Comfort: Crafted with CertiPUR-US certified foam, the Sweetlove king memory foam mattress is free from harmful odors and meets stringent standards for content, emissions, and durability. The skin-friendly knitted fabric cover provides a healthier and cloud-like sleep experience.
  • Pain Relief and Refreshed Mornings: The 4-layer foam design offers pain relief and improved sleep quality. The lavender infused foam contours to your body, providing relief around pressure points, while the comfort layer enhances the mattress's bounce, preventing sinking while you sleep.
  • Reliable Support and Motion Isolation: The king mattress offers solid support in every position, including the edges. The high-density foam provides proper spinal alignment and effectively absorbs motion, making it ideal for couples or anyone sensitive to movement during sleep.
  • Convenient Delivery and Versatile Compatibility: The 20cm king mattress is compressed and delivered in a box, allowing for convenient delivery to your location. It is compatible with various bed frames, including adjustable bases, slatted bed frames, bunk beds, platform beds, and floor setups. Allow 72 hours for the mattress to fully expand to its original size for optimal comfort.
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