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King Size Mattress - Upgrade Strengthen - 12 Inch Hybrid Firm King Mattress in a Box, Mattress King Size Made of Memory Foam and Individual Pocketed Springs, Strong Edge Support

  • Based on 172 reviews
Condition: New
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$257.77 Why this price?
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Eligible for Return, Refund or Replacement within 100 days of receipt

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Availability: 20 left in stock
Fulfilled by Amazon

Arrives Sunday, Nov 24
Order within 17 hours and 28 minutes
Available payment plans shown during checkout

Size: King


Style: 12 Inch Firm


Features

  • STRONG EDGE SUPPORTKing Mattress upgraded and strengthened Independent Pocket Springs provide strong edge support, prevent sagging, and effectively absorb movement interference between partners. Each spring fits your body curves, suitable for all sleeping positions, for you Provides perfect support.
  • KEEP FRESH AND COMFORTABLEThe Hybrid Mattress King is designed with soft and breathable knitted fabric and multi-layer memory foam. The smart sponge can adaptively dissipate heat so that you will not feel overheated while sleeping, and effectively relieve stress and fatigue, allowing you to sleep well every day. Wake up feeling refreshed.
  • KING MATTRESS IN A BOXMattress King Size is 76"W x 80"D x 12"H, with a maximum weight capacity of 1500 lbs. The Mattress is compatible with most King Size Beds on the market. We compress and pack the Mattress into a box It makes it very easy to transport to your room, and for a perfect sleep experience, it is recommended to give the Mattress 24-72 hours to return to its best shape.
  • 100% SATISFACTION AFTER-SALES SUPPORTMattress provides 100-night trial and 10-year support. If you have any questions, please contact our customer support team to help and solve it. EEN EEN SLEEP Mattress has passed 100,000 pressure tests before leaving the factory. Each Mattress has been carefully and rigorously screened to ensure excellent quality. Please keep a safe distance when unpacking, as the Mattress may expand rapidly.

Size: King


Special Feature: Strong Support, Pressure Relief, No Soreness, Breathable, Temperature Regulating, Soft Comfortable, Non-Fiberglass, New High-end Luxury Mattress, 100-Night Trial, Top Brands See more


Fill Material: High-Density Memory Foam and Pocketed Springs


Brand: EEN EEN SLEEP


Product Dimensions: 80"L x 76"W x 12"Th


Color: Blue


Coil Type: Pocketed Coil


Product Care Instructions: Hand Wash Only


Cover Material: Jacquard


Comfort Layer Material: Memory foam


Product Dimensions: 80 x 76 x 12 inches


Item Weight: 67 pounds


Manufacturer: Eensleep


Date First Available: December 21, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 24

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.

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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


  • Amazing mattress for very little money.
Size: California King Style: 12 Inch Firm
I cannot believe what a bargain this mattress is. I went to mattress stores and laid on mattresses that were $2000 and didn’t feel as nice as this one. This one is the perfect amount of firmness, yet comfort all rolled into one. I cannot recommend this mattress highly enough. If you’re looking for a firm mattress, that is not uncomfortable, look no further. This is your mattress. If I need another mattress, this will be the one I buy. ... show more
Reviewed in the United States on April 4, 2024 by William L.

  • I didn't want it to be soft!!
This mattress is exactly what I was looking for!!! OK, so admittedly I wasn't prepared for how quickly it sprang out of the box and started" growing - I live in a small condo with a wall of windows, and these mattresses remind me of a certain brand of biscuits that come in a can: once you open them, they expand like crazy! I managed to corral it onto my adjustable base, on which it works perfectly! It is a tad squeaky; I believe having a headboard to help keep it in place will alleviate that. I cannot believe how comfortable such an inexpensive mattress is!! I had a (name brand) that was too stiff to work well with adjustable base; my neighbor gave me a (name brand) to try, but it was far too soft. This EEN mattress wins the Goldilocks award: it is "just right"!! The fact that the price is just right is a huge bonus! I know it is daunting to purchase a mattress online, but for what it's worth, I suffer from severe chronic pain in my cervical swing, lumbar spine, and SI joints - what a JOY it is to wake up pain-free!!! I find it works best if I elevate the head of the bed ever-so-slightly, but that's a matter of personal preference. If you don't have an adjustable base, I'm sure you will still love this mattress! I am moving things out of my bedroom in my cracker box condo in the sky so I can upgrade to a king ASAP: I like to sleep diagonally. I don't think you'll be disappointed with this one...I'm thrilled with it! ... show more
Reviewed in the United States on January 27, 2024 by NancyJo

  • Sets up quickly
Size: Full Style: 12 Inch Firm
Once we cut the plastic away, the mattress immediately inflated to it's full size. I thought we'd have to wait several hours but it was ready to go in seconds. It's very comfortable and the perfect size for our office/guest room (full). It's a mix of inner spring and memory foam so there's no "sinking" into the mattress. ... show more
Reviewed in the United States on February 20, 2024 by JasonAndAdriana

  • Good mattress for the price!
Size: Queen Style: 14 Inch Firm
The sides are a bit soft when sitting but overall the quality for the pice is spot on! Very comfortable and would buy again!
Reviewed in the United States on January 14, 2024 by Amazon Customer

  • Very comfortable great price
Size: California King Style: 12 Inch Firm
I couldn't find a California king from mattress anywhere close to where I live. I was kind of surprised even though it came in a box of the quality of it for the price and it's very comfortable
Reviewed in the United States on March 14, 2024 by william h seelbach

  • Decent for low use/kids bed
Size: Queen Style: 14 Inch Firm
Heavier set guests can feel the springs on these guest bed mattresses. But they're plenty soft & comfortable for short term. Our 8 year old LOVES his. For kids/lighter folx - I think this is a good value. Not for plus sized or long term use.
Reviewed in the United States on March 18, 2024 by Alex & Amanda Peterson Family

  • Excellent Sleep Quality
Size: King Style: 14 Inch Firm
We purchased this King mattress for our guest bedroom... high compliments from all of our guests...Excell sleep quality mattress.
Reviewed in the United States on March 11, 2024 by Deb

  • Comfortable
Product as advertised. Son moved up to a queen size bed and stated he likes his new bed.
Reviewed in the United States on March 12, 2024 by Patrick Dwyer

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