Search  for anything...

King Size Mattress, 18 Inch Deluxe Hybrid King Mattress in a Box, Medium Firm Mattresses with Gel Memory Foam & Pocket Springs, Pressure Relief, Cooling, Extra Edge Support [Upgraded Support]

  • Based on 135 reviews
Condition: New
Checking for inventory...

Notify me when this product is back in stock

$849.99 Why this price?
Labor Day Deal · 6% off was $899.99

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward 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

100-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: Unavailable
Fulfilled by Amazon
Available payment plans shown during checkout

Color: Black


Item Thickness: 18.0 Inches


Size: King (U.S. Standard)


Features

  • Enjoy The Ultimate Comfort of Sleep - Hybrid mattress king consists of multiple layers of high-quality memory foam and enhanced Independent Pocket Springs, With superior comfort and targeted support, it can fully care for your body curves, relax your muscles in 360, relieve stress, relieve back pain, and experience the ultimate comfort of luxurious sleep.
  • Quiet & Motion Isolation Individual Springs - King size mattress has a high quality individual pocket coil and slow rebound memory sponge that effectively absorbs the noise and vibration caused by turning over during sleep, minimizing the transfer of motion to your partner and allowing you to enjoy deep sleep without being disturbed.
  • Upgraded Support - King bed mattress has upgraded the built-in Pocket Springs and added a high-density support sponge on the side, which makes the mattress more stable and reduces the risk of edge rolling during night exercise, thus improving safety. The upgraded edge also protects the internal structure. Extend the life of the mattress.
  • Luxury Healthy Fabric - Mattress king size selects high-quality and safe breathable knitted fabrics, without fiberglass, providing a silky smooth touch without roughness or discomfort, while promoting air circulation, effectively dissipating heat and sweat, keeping your sleep cool and comfortable.
  • 5 Layers of Premium Foam - 18 Inch king mattress is infused with a gel memory foam that aligns your spine, evenly distributes your weight, relaxes your muscles 360 and relieves stress, suitable for all sleeping positions, providing the ultimate comfort for your sleep.
  • Worry-Free & Professional Brand Service - We are a professional R&D manufacturer with many years of experience, every mattress has passed authoritative quality inspection, excellent quality, provide 10 years of support and 100 nights of trial, if you have any questions about mattress, please feel free to contact us. (King mattress in a box is easy to transport, please keep a safe distance when unpacking the box to prevent the mattress from rapidly expanding and hurting people. In order to obtain a perfect sleep experience, it is recommended to give the mattress 24-72 hours of time expansion.)

Brand: FANSACE


Size: King (U.S. Standard)


Product Dimensions: 80"L x 76"W x 18"Th


Top Style: Euro Top


Cover Material: Cotton Blend


Number of Layers: 9.0


Fill Material: Gel Memory Foam, Memory Foam


Weight Limit: 1000 Pounds


Special Feature: Lightweight, Durable, Pressure Relief, Breathable, Low Motion Transfer


Color: Black


Product Dimensions: 80 x 76 x 18 inches


Item Weight: 90.1 pounds


Manufacturer: FANSACE


Country of Origin: Indonesia


Item model number: FA18K


Date First Available: May 6, 2025


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 100 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


  • Zzzzz's in budget
Color: Black Item Thickness: 14.0 Inches Size: King (U.S. Standard)
I was hesitant to purchase this mattress because I have had more expensive hybrid mattresses before but I needed a new mattress fast due to moving from a furnished home to one that wasn't. I have to say this mattress was well worth the gamble! It is soft, comfortable.Super easy setup, no chemical smell or off gassing. I purchased the 14inch king, It is true to size. The medium firmness is perfect. Provides great supporting the Grey cover is much more appealing in appearance for me. I highly recommend if you want a sub $500 investment t I to your comfort, I believe you will be quite happy with this purchase. ... show more
Reviewed in the United States on July 3, 2025 by Jamie

  • Great buy!!! So comfy!
Color: Black Item Thickness: 14.0 Inches Size: California King
Arrived 4 days early, definitely needed two people to move it, but wouldn’t be impossible for one person to handle it. Enclosed tool to open wrapping worked perfectly. Feels great right out of the box. Easy to set up, and it didn’t require any time for it to be a full cali king 14 inch mattress, just like you’d see in a store. Got it for a great price with a $200 off promotion. Looks very nice, stitching is great, material is very soft. The mattress itself is firm but plush and very comfy. I have a connective tissue disorder that causes chronic pain, and I don’t have to adjust my position due to pain at all when lying on it. Springs are quiet and just the right amount of springy. Feels very cool so far. Update: zero sweating with this bed! Love it! ... show more
Reviewed in the United States on May 24, 2025 by AHbrook

  • NO REGRETS!!!!
Color: Black Item Thickness: 14.0 Inches Size: King (U.S. Standard)
Ok!!!!! I SOOOOOOO wanted to dislike this mattress (because it was not delivered the next day as promised), BUT, I have not slept soooooooo well in years, as I have during the past week. It's sold as "MEDIUM" FIRM but to me, it "FIRM on STERIODS". It's a mattress in a box that has a suggested time to inflate to its full size, but it literally was 14" immediately out of the packaging, corners and all. And, did I mention, it is COMFORTABLE!!!!! I've gone from sleeping 3-5 hrs. each night to enjoying 6 hrs. or more and I don't want to get out of the comfortable bed. My back pains have minimized since I started sleeping on this mattress. Definitely a value for the money spent. I've already recommended this mattress to 3 other people and 1 has already purchased it. I'm literally a Proud, Walking advertisement for this product!!!!!! ... show more
Reviewed in the United States on May 31, 2025 by Michael Thompson

  • Great quality and very comfortable
Color: Black Item Thickness: 10.0 Inches Size: Full
Great quality and very comfortable. It definitely has a chemical smell when you first open it, but we just left it out with the window open for a few days and it went away! Would definitely recommend this mattress!
Reviewed in the United States on July 30, 2025 by Marybeth Mealue

  • Run.... dont walk.....
Color: Black Item Thickness: 14.0 Inches Size: Queen (U.S. Standard)
Don't walk.... run to get this bed. I was worried about purchasing a bed online and not being able to lay on it and test it out. This bed will not disappoint. I have bad sciatic nerve pain along with degenerative disc disease and osteoarthritis throughout my whole body. I gave my bed 72 hours to expand and let me tell you this bed amazed me. Its not too plush and its not to firm. The material is super soft and its the most comfortable bed I've ever owned. I dont wake up so stiff it hurts to move anymore and I am actually sleeping. This bed is definitely worth it. ... show more
Reviewed in the United States on July 24, 2025 by Carla

  • Comfortable
Color: Black Item Thickness: 14.0 Inches Size: King (U.S. Standard)
Great purchase, good support in my hips and lower back. Back pain has decreased 90% in a week
Reviewed in the United States on July 25, 2025 by I shop too much on here

  • So comfortable !
Color: Black Item Thickness: 10.0 Inches Size: Full
SO COMFORTABLE! It’s soft yet firm at the same time. I’m a side/stomach sleeper and this best has been amazing on my back. I get the best sleep on here. The box is heavy upon arrival, and once you open the plastic the mattress will expand and run you out the room so be prepared to give it space but it’s well worth it. I love that it’s not a common white colored mattress, the gray gives a good esthetic when washing covers. ... show more
Reviewed in the United States on June 8, 2025 by Jessenia

  • NOPE….REFUND ASAP
Color: Black Item Thickness: 14.0 Inches Size: King (U.S. Standard)
This mattress actually fit a little higher than they measured it at very beautiful love the color does not smell like chemicals within about 10 seconds of opening it up you can lay on it. All of that is beautiful except the fact that it’s hard as a rock, I had to go get a 3 inch memory foam pad to put over this mattress and I literally tossed and turned all night and I don’t have back issues. I’m returning, asap, I’d rather pay $1000 for a comfortable than pay half that price and have back problems. Very uncomfortable ... show more
Reviewed in the United States on May 25, 2025 by Destiny.Jenk

Can't find a product?

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