Search  for anything...

King Size Mattress, Upgrade Strengthen Firm 12 Inch Hybrid King Mattress in A Box, Mattress King With High Density Memory Foam and Independent Pocket Springs, Strong Edge Support, Relieve Back Pain

  • Based on 9 reviews
Condition: New
Checking for product changes
$279.77 Why this price?
Save $43.89 was $323.66

Buy Now, Pay Later


As low as $46.63 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, May 23
Order within 14 hours and 20 minutes
Available payment plans shown during checkout

Color: White


Item Thickness: 12.0 Inches


Size: King (U.S. Standard)


Features

  • Comfortable Sleep And Stable Support: The king mattress features an Upgrade Strengthen individual support spring and multiple layers of high-density memory foam. Make sure your weight is evenly distributed from head to toe to Queeny relax your muscles, release stress, relieve back pain, and allow you to enjoy a deep and comfortable sleep experience
  • Stronger Edge Support: The King size mattress is formed with hundreds of upgrades enhanced Independent Pocket Springs to provide targeted and stable support according to the curve of the body, and prevent you from sliding off the edge of the mattress, effectively blocking the noise of your partner's movement, providing you with superior support and quiet deep sleep
  • Soft To The Touch And Superior Quality: The mattress king is designed with porous breathable fabric, which is more breathable and comfortable than traditional mattresses, and the top layer is made of soft high-end fabric, which feels like clouds, so that you can wake up refreshed
  • King Size Mattress In A Box: The dimensions of this 12 inch king mattress are 76"W x 80"D x 12"H. The king bed mattress is of firm which can hold up to 1500 lbs;The mattress is compressed into a sturdy packing bag and protected by a box, Easy to transport
  • Worry Free After Sales Service: This 12 inch hybrid king mattress offers 100 night trial and 10 years of support, Mattresses have been tested for stress and support, and are of excellent quality, so if you have any questions about our mattresses, please feel free to contact our customer support team to help you

Brand: EEN EEN SLEEP


Size: King (U.S. Standard)


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


Top Style: Pillow Top


Fill Material: Independent Pocket Springs, Gel Memory Foam, Memory Foam


Weight Limit: 1500 Pounds


Special Feature: Strong Support, Pressure Relief, Back Pain Relief, Adaptive Temperature Regulation, Refreshing Breathable, Soft And Comfortable, Non-Fiberglass, New High-End Luxury Mattress, 100-Nights Trial And 10 Years Support, Top Brands See more


Color: White


Coil Type: Pocketed Coil


Model Name: EC Hybrid Mattress


Product Dimensions: 80 x 76 x 12 inches


Item Weight: 67 pounds


Manufacturer: Eensleep


Country of Origin: Indonesia


Item model number: EC 12 Inch Hybrid King Mattress


Date First Available: January 1, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 23

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
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Soooo much more comfortable than I ever expected
Color: White Item Thickness: 10.0 Inches Size: Full
I got this for my daughter for Christmas and I must say it's extremely comfortable! I love a plush matress and this definitely doesn't disappoint! It really is 12" thick. I let it fully settle for 3 days prior to use and it plumped up big time. I was especially surprised that it was so comfortable for the price. The shipping was super fast and I couldn't be happier with my purchase! ... show more
Reviewed in the United States on December 30, 2024 by The Kings Coop (Holly) The Kings Coop (Holly)

  • I was surprised at the comfort of this mattress!
Color: White Item Thickness: 10.0 Inches Size: Full
We ordered this mattress for our guest bedroom to replace an older worn-out mattress. I didn't expect much for the price, but I was very pleasantly surprised! It's actually very comfortable. There are coils on the lower part of the mattress, with a memory foam upper portion. It comes vacuum-packed in a box, and includes a letter opener (a nice touch to avoid damaging the mattress) to cut the plastic wrapping. A word of caution- make sure you have a large area to cut open the plastic, because as soon as the plastic is no longer containing it, it literally "pops open" to full size. It was fun, but a little alarming lol! After it has expanded, you'd never know that it's a "mattress in a box". It's definitely not light-weight, and it's very much like a hybrid mattress you would buy in a mattress store. It's supportive (with its coils), yet soft. I actually like it better than the $2,000 mattress in our master bedroom. I realize that bed comfort is subjective, but our guests have commented on how comfortable it is. Glad I found this! ... show more
Reviewed in the United States on December 18, 2024 by chiefsfam

  • Good mattress
Color: White Item Thickness: 10.0 Inches Size: Full
This is a very good mattress. It's super comfortable to sleep in. I like the thickness of it. I'm surprised that the shop doesn't carry this size mattress. Any more, when it comes to it being a 10 inch, that being said, I love the way it's designed. I love the way it was made again. It feels very comfortable to sleep in. ... show more
Reviewed in the United States on January 2, 2025 by T. Wehner

  • You'll need some patience, but it's a really comfy mattress
Color: White Item Thickness: 10.0 Inches Size: Full
When I say patience, I men give it 36 hours or more. It comes vacuum packed into a very compact package, and when unpacked looks like it will never become a mattress. But soon it plumps up, and really becomes a great mattress after a day or two. Once it gets up to full size you'll have a very soft, supportive mattres0s. It's at least 12" thick and the pillow top makes for a great sleeping surface. My only complaint was the price, which was $210 when I ordered it. If you can find it with a coupon it's a five star item, but even at full ptprice it's a great mattress. ... show more
Reviewed in the United States on January 2, 2025 by Empty Nest Dad

  • Wonderful mattress for the price!
Color: White Item Thickness: 10.0 Inches Size: Full
This mattress is better than anything I’ve ever purchased from Raymour and Flanagan! I’m so impressed with the quality of the mattress and even more so that it came vacuum sealed in a box! Wow, we have come far in developing mattresses that you don’t have to wait for on a big truck. This mattress is soft yet firm enough to provide good support. ... show more
Reviewed in the United States on January 3, 2025 by Reviews for you

  • Exceptional Comfort and Support
Color: White Item Thickness: 10.0 Inches Size: Full
The Een Een Sleep 10-Inch Hybrid Full-Size Mattress is a perfect blend of comfort and durability. The high-density memory foam provides just the right amount of softness while conforming to the body, and the independent pocket springs offer excellent support and motion isolation. The strong edge support ensures you can use the entire mattress without feeling like you’ll roll off, which is a big plus. The setup was hassle-free thanks to its compact packaging. This mattress delivers a great night’s sleep and is a fantastic value. Highly recommend! ... show more
Reviewed in the United States on December 13, 2024 by LVGoodguy

  • Great value
Color: White Item Thickness: 10.0 Inches Size: Full
I Pick this up to donate to a local veterans organization to be raffled off for them to raise money great value great quality very useful
Reviewed in the United States on December 31, 2024 by Amanda Christine

  • full size mattress
Color: White Item Thickness: 10.0 Inches Size: Full
quickly rose up to its full intended size. perfect for a guest room
Reviewed in the United States on December 20, 2024 by Jason Echevarria

Can't find a product?

Find it on Amazon first, then paste the link below.