California King Mattress, 12 Inch Firm Hybrid Cal King Bed Mattress in a Box with Gel Memory Foam, Motion Isolation, Pressure Relief, Cooling Sleep
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Availability:
20 left in stock
Arrives
Thursday, Sep 11
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Style: 12 inch
Size: California King
Features
- Enjoy A Comfortable Deep Sleep: The cal king mattress combines multiple layers of premium memory foam with individual support spring to provide superior comfort and targeted support. Make sure your weight is evenly distributed from head to toe, fully relaxes your muscles, which helps relieve back pain and improves your sleeping quality
- Breathable and Healthy: The mattress cal king size features a breathable knit fabric top which can promotes airflow, discharge the steam and sweat from the contact surface between you and the mattress, keeping you dry and comfortable throughout the night
- Quiet and Independent Spring: The 12 inch california king mattress is built-in high-quality independent pocket coil and slow rebound sponge, which can effectively absorb the noise and vibration caused by turning over during sleep, minimize motion transfer, so you are not disturbed by your partner turning over
- Suitable for All Sleep Positions: The mattress cal king with 4 layers all-foam system, suitable for all sleeping positions. This firm mattress is made of gel memory foam, which aligns your spine and evenly disperses your body weight to relieve pressure points while you sleep
- Strong Edge Support: The reinforced edge support of the cal king bed mattress can prevent it from sagging and enhance its stability. reduce the risk of rolling off during nighttime movements, thus improving safety. The reinforced edges also protect the internal structure, extending the mattress's service life
- Cal King Mattress in A Box: The hybrid mattress is vacuum roll packaged and delivered anywhere. The Ruoysun cal king mattresses come with a 10-year protection and 100 night trial. Please keep a safe distance from the mattress when unpacking to prevent injury by its instant expansion. And allow 48 - 72 hours for it to fully expand
Brand: Ruoysun
Size: California King
Product Dimensions: 84"L x 72"W x 12"Th
Top Style: Euro Top
Cover Material: 3D Knitted Fabric
Number of Layers: 4
Fill Material: Gel Memory Foam
Weight Limit: 800 Pounds
Special Feature: Low Motion Transfer, Zoned Support, Pressure Relief, Back Pain Relief
Color: Grey
Product Dimensions: 84 x 72 x 12 inches
Item Weight: 95.8 pounds
Manufacturer: Ruoysun
Item model number: 12 inch California King Size
Date First Available: December 12, 2024
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Sep 11
Yes, absolutely! You may return this product for a full refund within 100 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: 14 inch
Size: Queen
This is a great mattress for the price. We were in a pinch and needed a mattress replacement so after reading a few reviews we went with this one. This hybrid mattress has traditional coils on the bottom half, and a thick memory foam layer on top. The mattress arrived pressed and and vacuum sealed, so lay it and unroll it on the bed for ease. I can honestly say it is such fun to watch this mattress take in air and decompress itself. It seemed full after about an hour after unwrapping, but we followed the recommendations of allowing it 48 hours to fully inflate. The mattress reached 16.5 inches in depth after fully inflating. The mattress is firm but comfortable, with the memory foam top providing "customized" comfort for each body type. It is worth mentioning that the other person's movements are hardly felt/ noticeable, which makes this mattress a winner in my book! On the down side, the edges of the mattress are kind of "soft", so when you sit on the edge of the bed you feel like you're slipping off; this is is a minor issue, in my book, but worthy to note in the event you are an edge of the bed sleeper.
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Reviewed in the United States on July 13, 2025 by karatchris karatchris
Style: 14 inch
Size: Queen
This is, by far, one of the best values I’ve purchased for the cost. The fitness is perfect and quality is spot on. It looks great, feels great, and stays firm. My partner and I both love it and he’s way more particular about sleeping conditions. Highly recommend.
Reviewed in the United States on July 3, 2025 by Helena Bean
Style: 12 Inch Medium Plush
Size: Queen
Great price and quality. Fast delivery.
Reviewed in the United States on July 13, 2025 by Audrey
Style: 12 inch
Size: California King
I got this mattress because it was one of the few that said it was firm. It actually is firm and offers good support. No smell. Measurements are accurate. This is for a guest bedroom and it will offer my guests more space since it’s a cal king. I’m really happy with it.
Reviewed in the United States on June 17, 2025 by Steve
This is a good mattress for the price point. It arrived in a surprisingly small box, but does expand to full size in about a day. It is a great guest room mattress!
Reviewed in the United States on July 22, 2025 by Kevin Grierson
Style: 14 inch
Size: King
Very comfortable - slept on it within 12 hours after setting it up
Reviewed in the United States on July 10, 2025 by Nancy Bisson
Style: 12 inch
Size: King
Good quality 😁 true size
Reviewed in the United States on July 22, 2025 by Zevar Sadulloeva
Style: 12 inch
Size: King
This bed is nothing it says it is. It’s not firm, it’s like sleeping on top of wobbly tubes. I’m 6’ 165lbs so I can’t imagine I weight too much for it. When my 20# dog jumps up on it she shakes and moves the entire bed. I’d say it’s like sleeping on a water bed. Height and size seems right but that’s about it.
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Reviewed in the United States on June 13, 2025 by Drunk Jeeper