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Ruoysun

California King Mattress, 12 Inch Hybrid Cal King Bed Mattress in a Box, Medium Firm, Gel Memory Foam and Individual Pocket Spring for Pressure Relief, Edge Support, CertiPUR-US

    • Based on 50 reviews
Condition: New
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$399.99 Why this price?
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Availability: 20 left in stock
Fulfilled by Amazon
Arrives Monday, May 12
Order within 4 hours and 29 minutes
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Style: 12 inch


Size: California King


Features

  • ENJOY A CCOMFORABLE DEEP SLEEP: The california 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 COMFORTABLE: 12 inch cal king mattress is made of skin-friendly knitted fabric and gel memory foam, independent pocket spring system,enhances air circulation, allowing you to stay comfortable, breathable and natural all night long. It effectively absorbs steam and sweat from the contact surface, keeping your body comfortable and dry all night long
  • MOTION ISOLATION: cali king mattress use upgraded individually pocket coils springs, each providing personalized support to improve sleep quality and minimize tossing and turning. its tends to reduce noise and isolate motion when you move, effectively avoid movement interference between partners, create a quiet and undisturbed sleep with this mattress cal king
  • CAL KING MATTRESS IN A BOX: Cal king bed mattress measure 84" L x 72" W x 12" H. It was rolled up, compressed into a box, and sent to your home. To maintain the best effect, please leave the medium firm mattress for 48-72 hours after opening until fully expand. Please keep a safe distance from the mattress when unpacking to prevent injury by its instant expansion
  • RELIABLE PURCHASE: Ruoysun mattress cal king size comes with a 100 nights trial and 10 years after sales support, providing you with reassurance. If you have any question about Ruoysun mattresses, please contact us in time and we will provide you with the best solution within 24 hours

Brand: Ruoysun


Size: California King


Product Dimensions: 84"L x 72"W x 12"Th


Top Style: Euro Top


Cover Material: 3D Knitted Fabric


Fill Material: Gel Memory Foam


Weight Limit: 800 Pounds


Special Feature: Breathable, Pressure Relief, Back Pain Relief, Edge Support, Motion Isolation, Zoned Support


Color: Grey


Coil Type: Pocketed Coil


Product Dimensions: 84 x 72 x 12 inches


Item Weight: 71.8 pounds


Manufacturer: Ruoysun


Item model number: 12 inch California King Size


Date First Available: February 26, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great Bed, Great Value!!!
Style: 12 inch Size: Full
This bed is awesome! Just the right amount of firmness. I did keep my old box spring and put the mattress on top of it So I have a taller bed. It was nice to have it delivered to the house. Its heavy but we got it upstairs and opened. Let it "Expand" for 3 days and it was perfect.
Reviewed in the United States on April 15, 2025 by Julie Lord
    • Soft comfy top Yet firm great mattress.
Style: 12 inch Size: Full
Just received in 4 hours. It was harder than my other gel bed was in a year. It's the best..
Reviewed in the United States on May 2, 2025 by Steve Drangel
    • Will make due for a few years
For the price, I’m surprised how comfortable it is. There is adequate lumbar support. It’s only been a few nights but it does feel very comfortable for a firm mattress. If I kneel on the bed I can subtly feel something harder, probably the springs. But it’s not at all noticeable when lying down. No smell at all. We let it sit 72 hours before use and it definitely firmed up the first 48 hours. ... show more
Reviewed in the United States on May 6, 2025 by jewelspot
    • 10/10
It was a gift, worked out great.
Reviewed in the United States on May 5, 2025 by Jocelyn
    • Good quality
The first feeling when lying on it is that the surface is quite soft, and the contact surface of the body feels a bit wrapped, but it is not the kind of soft that you can't get up from sinking in. The support force of the pocket spring below is online, and it will not collapse when turning over. The whole mattress is of medium hardness. It will not cause back pain after lying for a long time, but it feels quite relaxing. I am personally more easily affected by the other person's turning over, but the motion isolation of this mattress is really good. I basically don't feel it when my spouse turns over at night, and I can sleep more peacefully than before. It also has a partition support design. Although I don't care about this function very much, I do feel that the shoulders and waist have relatively balanced support in actual experience, and there will be no feeling of suspension or discomfort in any part. The mattress was delivered in a compressed box. After opening it, it basically returned to its original state after being left for a day or two according to the instructions. There is no strange smell. The packaging is clean and tidy, and it is also more convenient to move into the room. ... show more
Reviewed in the United States on May 1, 2025 by Robert L. K
    • easy to use
The mattress is really comfortable to sleep on. It has the right medium hardness, not too soft or too hard. When you lie on it, the gel memory foam on the surface fits the body but does not collapse. The independent pocket springs underneath provide good support. The partition design is also very obvious. The shoulders and waist feel reasonably supported, especially for people like me who tend to toss and turn when sleeping. The people next to me can hardly feel the movement. The motion isolation effect is very good, and I slept very soundly. It expanded very quickly after unpacking and took shape overnight. The smell is not strong, and there is basically no smell after a day of ventilation. The packaging is in a compressed box, and it is a bit difficult for one person to move it, but it can still be done. ... show more
Reviewed in the United States on May 5, 2025 by human X
    • Looks can be deceiving
Style: 10 inch Size: Full
Definitely not as high as it looks in the picture. It is comfortable. I wouldn’t recommend it for long-term use though. Seems like this is like perfect for a guest room. I have it in my guest room, I don’t think I’ll have to replace it at all because no one really comes by lol. But you will absolutely need to stand to put this on. Three stars cause it’s nice but the picture makes it look a lot bigger. ... show more
Reviewed in the United States on March 9, 2025 by Rob
    • Nice mattress for average weight people.
For starters, I'm 330lbs and 6ft 4, and this is a bit *too* soft for me. But that's expected as people over 250lbs tend to perceive mattresses as softer since they depress more under our added weight. That said, I'd put it on the softer end of medium, where someone who is of average weight would probably put it at the higher end, and someone super skinny would think it's firm. Hope that helps! For me, I need firm, but for an average person, this will be exactly what it says it is and I think the feel of it is wonderful. Just not for long term use if you're REALLY big like me. Oh, and it only took a few hours to expand, and there were no weird smells once it did. I have an air quality monitor too that measures VOCs and they only went up 2 parts per million, which for a ton of brand new foam, is quite excellent, and still well within safe healthy ranges. ... show more
Reviewed in the United States on April 20, 2025 by Glass

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