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King Size Mattress [Upgraded Strengthen] 14 Inch Firm King Mattress In A Box, Hybrid Mattresses With Gel Memory Foam & Independent Pocket Springs,Pressure Relief, Strong Edge Support,366-Night Trial

  • Based on 325 reviews
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$309.77 Why this price?
Save $20.22 was $329.99

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Color: Grey


Item Thickness: 14.0 Inches


Size: King (U.S. Standard)


Features

  • Luxurious & Comfortable Sleep ExperienceThe unique seven-zone support system of king mattress provides targeted stress relief for your whole body, eliminates fatigue, perfectly solves muscle soreness and back pain, and enables you to no longer suffer from insomnia due to pain
  • More Comfortable & Stable SupportThe king size mattress has been Upgrade Strengthen with the Independent Pocket Springs, providing it with more stable and comfortable support. The additional edge support on the outer three rows not only prevents you from rolling off the edge of the mattress but also enhances the overall firmness of the mattress, making its service life longer
  • Ultimate Motion IsolationThe mattress king size is equipped with high-quality independent pocket springs and slow-rebound memory foam, effectively eliminating the movement transmission and noise of your partner. It is suitable for any sleeping position and can bring you undisturbed deep sleep
  • Healthy & Safe MaterialsHybrid mattress king only uses top-notch safe materials, without fiberglass or unpleasant odors. The built-in gel memory foam effectively promotes air circulation and expels excess body heat, keeping your sleep extremely refreshing throughout the night
  • King Size Mattress In A BoxKing mattress 14 inch measures 76"W x 80"D x 14"H, with a maximum load capacity of 1500 pounds. It is compatible with all king Beds. We compress the mattress unscathed into one box for your convenient transportation (For a perfect sleep experience, it is recommended to allow the mattress to expand for 24 to 72 hours. Please keep a safe distance when opening the package as the mattress may expand rapidly)

Brand: EEN EEN SLEEP


Size: King (U.S. Standard)


Product Dimensions: 80"L x 76"W x 14"Th


Top Style: Euro Top


Cover Material: Polycotton


Number of Layers: 8.0


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


Weight Limit: 1500 Pounds


Special Feature: Strong Support, Pressure Relief, No Soreness, Breathable, Temperature Regulating, Soft Comfortable, Non-Fiberglass, New High-end Luxury Mattress, 366-Night Trial, Top Brands See more


Color: Grey


Product Dimensions: 80 x 76 x 14 inches


Item Weight: 67 pounds


Manufacturer: Eensleep


Item model number: EB14K-8


Date First Available: June 15, 2025


Age Range Description: All


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

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.

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Top Amazon Reviews


  • Good quality and firmness
Size is good firmness is good in the corners is goes down but it firm enough. It have no smell is a good quality worth the money. Been using it for 6 months and have no complaints easy to clean and really comfortable. Durability is good have not holes or feel is getting thinner on any side.
Reviewed in the United States on September 6, 2025 by Kimberly Rodriguez Perez

  • Excellent Mattress
Color: Grey Item Thickness: 14.0 Inches Size: King (U.S. Standard)
This mattress was a great investment. We followed the directions carefully. We unrolled it, let it expand for three days before putting it atop the frame. The thickness and comfort is such a major improvement from our 20 year old Sealy Posture-Pedic "old-school" mattress. We are sleeping so much better now. We recommend this brand of hybrid mattress in any size. In fact, we are going to purchase a twin size version for our son heading back to college this fall. He'll be in off-campus housing now and needs a bed. This one will be perfect! ... show more
Reviewed in the United States on July 25, 2025 by LMH

  • Perfect firm mattress!
Color: Grey Item Thickness: 12.0 Inches Size: King (U.S. Standard)
This bed in a box more than met our expectations and is very comfortable We needed a firm mattress for an island home and were not sure we could get one that was not a traditional mattress!! It was heavy but we managed to get it there by boat and set it up 2 days before we needed it for sleeping. It is firm which is what we were looking for, and we would highly recommend it!! ... show more
Reviewed in the United States on August 2, 2025 by Jan Sallah

  • Comfort and support
Color: Grey Item Thickness: 14.0 Inches Size: King (U.S. Standard)
This is great box mattress option surprised hiw easy it was to unpack. Great directions. Waited the time required for it to come back to shape. Described well in write up.
Reviewed in the United States on August 30, 2025 by Jennifer Lewis

  • 4 stars - Good product would by again if needed
It was delivered on time. Be sure to leave time between unpackaging and use. It takes about 4 days to sit while it fluffs. It was easy to move and what the correct size. The firmness was a little softer than expected. Overall good product.
Reviewed in the United States on July 9, 2025 by M Smith

  • Poor Quality Even For Price
Color: Grey Item Thickness: 14.0 Inches Size: King (U.S. Standard)
Inexpensive and quality reflects it. I roll off the side of the bed because it did not inflate evenly. Requires original packaging for return which is impossible because it was vacuumed sealed
Reviewed in the United States on September 2, 2025 by Jennifer S

  • Great!!
Color: Grey Item Thickness: 14.0 Inches Size: King (U.S. Standard)
It’s very comfortable and reasonably in prices
Reviewed in the United States on August 27, 2025 by Fenel

  • Matress
Color: Grey Item Thickness: 14.0 Inches Size: King (U.S. Standard)
Not much to say! On the 3-4 hours it was done and ready to set. I have slept so good! I sleep with 2 more friends and def I will buy it again
Reviewed in the United States on August 19, 2025 by Axa Oliva

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