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California King Mattress - Upgrade Strengthen - 12 Inch Hybrid Cal King Mattress in a Box, With Memory Foam and Independent Pocket Springs, Strong Edge Support, Release Stress, Medium Firm

  • Based on 45 reviews
Condition: New
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$287.77 Why this price?
Save $346.22 was $633.99

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Size: California King


Style: 12 Inch Firm


Brand: EEN EEN SLEEP


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


Cover Material: Cotton


Number of Layers: 2


Special Feature: Durable


Color: Blue


Coil Type: Pocketed Coil


Model Name: Upgrade Strengthen


Product Benefits: Stress Relief, Posture Support


Product Care Instructions: Hand Wash Only


Product Dimensions: 84 x 72 x 12 inches


Item Weight: 84 pounds


Manufacturer: EEN EEN SLEEP


Date First Available: September 5, 2023


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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.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great mattress
Size: King Style: 12 Inch Firm
It’s the perfect combination between soft, firm, and good support. It’s an overall great mattress for the price. What I like most about is the support it gives my back. I am eight months pregnant and this mattress has been heavenly for me. Definitely recommend..
Reviewed in the United States on December 8, 2023 by Kenn

  • Quality for the price.
Size: Queen Style: 12 Inch
Love the new mattress, inflated fast and was able to sleep on it that night. Comfortable with just the right firmness for support.
Reviewed in the United States on December 26, 2023 by Robert H.

  • Comfortable but low to the ground
Size: King Style: 10 Inch
It is so comfortable, however it is low to the ground. I can't buy leg risers because there are 3 different size legs.
Reviewed in the United States on November 21, 2023 by Michael McHugh

  • Price!!
Size: Queen Style: 12 Inch
Definitely the best bang for your buck!!! It’s comfortable and really have nothing bad to say.
Reviewed in the United States on December 17, 2023 by Ricky

  • Perfect for what we needed
Perfect comfort , delivery , price and quality. Got delivered to my sons college apartment and he loves it. Mattresses are important ! This is good for all blacks and Just a touch too soft for people who want stuff. We didn’t.
Reviewed in the United States on September 18, 2023 by Jennifer P

  • Great bed for price
Size: King Style: 10 Inch
Very comfortable I got a king size with the right sheets and comfortable. It's an amazing bed.
Reviewed in the United States on December 11, 2023 by Chelsea Cheyenne

  • Complete disappointment.
Size: California King Style: 12 Inch Firm
Feels like laying on a trap house mattress. Its basically just springs. Cushion is not as advertised, feels like maybe 1 inch of Cushion layed over a bunch of springs. Dont waste your money.
Reviewed in the United States on December 29, 2023 by sean f. sean f.

  • Very springy. When you lay on it, you can feel the springs.
Size: Queen Style: 12 Inch
Wasn’t what I expected. Haven’t slept on it because it’s on our guest bed. But the springs are very dominant. I’ll update review after somebody has slept on it.
Reviewed in the United States on December 8, 2023 by Julie Imes

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