Search  for anything...

King Size Mattress, Upgrade Strengthen 14 Inch Firm Hybrid King Mattress in a Box, Mattress King Size With Memory Foam and Independent Pocket Springs, Strong Edge Support, Release Pressure

  • Based on 203 reviews
Condition: New
Checking for product changes
$347.77 Why this price?

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term with PayTomorrow
  • – 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
This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

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 Wednesday, Nov 27
Order within 17 hours and 20 minutes
Available payment plans shown during checkout

Color: Grey


Item Thickness: 14.0 Inches


Size: King (U.S. Standard)


Features

  • Enjoy A Comfortable Deep Sleep: The King Size Mattress is made of independent pocket springs and multiple layers of high-quality memory foam to provide you with the best support and comfort. It fits your body curves to reduce soreness, effectively relieves fatigue releases pressure, It is breathable and sweat wicking without stuffiness, allowing you to have the best comfortable sleep experience
  • Strong Edge Support: We have enhanced the King Mattress independent pocket spring to give it better support and sturdiness, without collapsing around the edges, and absorb movement interference between partners to achieve a quiet and comfortable deep sleep
  • Soft And Silky To The Touch: Mattress King Size are designed with selected high-end fabrics, bringing a soft and silky touch, and are breathable and wick away sweat without stuffiness, allowing you to wake up refreshed
  • King Mattress In A Box: The Mattress King measures 76"W x 80"D x 14"H and supports a maximum weight of 1500 lbs;The Mattress is compatible with most King Beds, The Mattresses are losslessly compressed into the box, which makes it easy to transport
  • Worry Free After Sales Service: This King Mattresses 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 14"Th


Top Style: Pillow Top


Fill Material: High Density Memory Foam and Pocketed Springs


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


Color: Grey


Coil Type: Pocketed Coil


Product Benefits: Back Pain Relief, Posture Support, Pressure Relief, Improves Sleep


Comfort Layer Material: Memory foam


Mattress Comfort Layer Material: Memory foam


Fill Material: High Density Memory Foam and Pocketed Springs


Item Weight: 78.9 Pounds


Item Dimensions L x W x Thickness: 80"L x 76"W x 14"Th


Size: King (U.S. Standard)


Manufacturer: Eensleep


Product Benefits: Back Pain Relief, Posture Support, Pressure Relief, Improves Sleep


Brand Name: EEN EEN SLEEP


Age Range Description: ALL


Color: Grey


Top Style: Pillow Top


Construction Type: Hybrid


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


Mattress Coil Type: Pocketed Coil


Item Firmness Description: Firm


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Nov 27

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


  • Good quality and very comfortable
Color: Grey Item Thickness: 12.0 Inches Size: Full
Liked that when I needed a reasonably priced mattress for my grandson who’s unexpectedly moved in it was a perfect fit
Reviewed in the United States on November 8, 2024 by kathleen a waterman

  • Very comfortable
Color: Grey Item Thickness: 12.0 Inches Size: Queen (U.S. Standard)
Great mattress.
Reviewed in the United States on November 9, 2024 by Eddie Ridriguez

  • Very comfy
Color: Grey Item Thickness: 12.0 Inches Size: Full
lol everytime one of my friends sit on my bed they say how it feels like you’re laying on a cloud lol but definitely worth the money i sleep great
Reviewed in the United States on October 18, 2024 by Justice h

  • Very good mattress
Color: Grey Item Thickness: 12.0 Inches Size: Full
It's nice and firm I get a good night's sleep
Reviewed in the United States on October 3, 2024 by earnest b colley jr

  • Super comfortable
Color: Grey Item Thickness: 12.0 Inches Size: Full
It's super comfortable matress
Reviewed in the United States on November 3, 2024 by Allen

  • Good Product
Color: Grey Item Thickness: 12.0 Inches Size: Full
People buy box mattresses for a reason. It comes via Amazon to your front door! No dealing with delivery, set up people and it's inexpensive. Mattresses is firm so product description is accurate. If you add a cover it's even more so. Overall, good for the price.
Reviewed in the United States on November 2, 2024 by Mack

  • Bed in box hybrid mattress too soft
Color: Grey Item Thickness: 12.0 Inches Size: Full
I like that the mattress was easy to unpack and move and the price was affordable. Although it is suppose to be a firm hybrid mattress, it is TOO soft.
Reviewed in the United States on September 24, 2024 by Amazon Customer

  • Good for price!
Color: Grey Item Thickness: 12.0 Inches Size: Full
Delivery on time good quality nice sleeping easy set up.
Reviewed in the United States on October 27, 2024 by A Fair

Can't find a product?

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