Search  for anything...

Firm King Size Mattress, 14 Inch Gel Memory Foam Hybrid Mattress King Bed in a Box, Pressure & Pain Relief, Individual Pocket Spring, Edge Support, CertiPUR-US

  • Based on 27 reviews
Condition: New
Checking for the best price...
$399.99 Why this price?
Save $100.00 was $499.99

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

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

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: Only 10 left in stock, order soon!
Fulfilled by Amazon

Arrives Wednesday, Aug 27
Order within 5 hours and 29 minutes
Available payment plans shown during checkout

Style: 14 Inch Firm


Size: King


Features

  • BETTER SUPPORT & PRESSURE RELIEF: LETMOON 14 inch king size memory foam mattresses adopts 7-layer hybrid design, that base on our years of mattress research, and it is an ergonomic practice, with a load capacity of 500 pounds, provides firm support. No fiberglass
  • ENJOY HEALTHY SLEEP: LETMOON memory foam hybrid mattress adopts an independent pocket spring matrix distribution, this zone design can effectively absorb the noise of your partner's sleep turning over in bed or getting in and out of bed that waking you up. Multi-layer foam of the top section provides a good fit for pain relief. Zoned spring layers from center to bottom provide support and MOTION ISOLATION. The solid edge support design enhances durability, you needn't worry about sinking
  • PREMIUM & BREATHABLE: For your long-term good sleeping environment, LETMOON mattress materials are all certified to enhance the mattress's reliability and durability. The surface is made of knitted fabric similar to a pillow top, with a classic cloud quilting design, which can create an extremely comfortable touch and excellent breathability. This mattress is suitable for hot sleepers, seniors, and back sleepers
  • MATTRESS IN A BOX: LETMOON 14 inch king mattress size is 80" x 76" x 14". It was rolled up, compressed into a box, and sent to your home. It's very easily to open and install, fits most bed frames, box spring, bunk bed, slatted bed, flat platform, bed floor. To maintain the best effect, please leave the mattress for 72 hours after opening until fully stretched
  • WORRY FREE: LETMOON mattress meets CertiPUR-US standards, provides 100 days of free trial service and 10 years of safety and durability support. If you are not satisfied, please contact us in time and we will give you a satisfactory reply within 24 hours

Brand: LETMOON


Size: King


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


Top Style: Euro Top


Cover Material: Fabric Blend


Number of Layers: 7


Fill Material: Gel Memory Foam


Weight Limit: 5E+2 Pounds


Special Feature: Pressure Relief


Color: White


Product Dimensions: 80 x 76 x 14 inches


Item Weight: 118.7 pounds


Item model number: 9990ffaf-9627-4256-bc542


Date First Available: November 12, 2024


Age Range Description: Adult


Frequently asked questions

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

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


  • Nice matterss
So far so good. For the price it's a good mattress. I been sleeping well and not waking up with any aches or pains
Reviewed in the United States on March 10, 2025 by Mark Colletti

  • Oh slumber heaven!
This review is for the Full Size Mattress, 8 Inch Gel Memory Foam Hybrid Full Size Bed in a Box, Full Bed Mattress for Pressure & Pain Relief, Certipur-US, Motion Isolation Pocket Spring, Edge Support. For a long time I wouldn't get one of these newer style mattresses as I just wasn't convinced they were a better choice over the traditional seperate box spring and mattress sets. And I had no worry about it for a long time until we needed to get new mattresses. So since that time has arrived and I was fortunate enough to get this in my offers I grabbed it, and I must say I'm happy I did! I had also recently gotten another like this that's thicker, which is fine for me. I like this is only 8 inches thick as we like to have our beds raised up on risers for the added underbed storage spaces it provides. I got this for 1 of our spare bedrooms when family visits. But do not mistake only being 8 inches thick that it can not do it's job of providing and promoting a supportive comfortable restful night's sleep! This is as well made a mattress as any I've ever looked at in any mattress/furniture store! And it would be much higher priced in a brick & mortar store. Do yourself a favor and save some money! This is a beautiful mattress too! The quilted med firm top is fantastic, providing support with cushioning. And let's not forget the individually wrapped pocket coil springs with extra support around the edges, which is really nice so it doesn't collapse on you when you sit on the edge of the bed or if you like to sleep near the edge. And all the layers of foam in between. Personally I sleep alone, so I can't speak as to whether a bed partner would feel motion by another, but I can say this is not a wimpy mattress weebles and wobbles... Stitching is excellent throughout the mattress. So this comes vacuum sealed rolled up, I'm amazed they can do what they do with these! Be careful cutting it open, unbox it in the room you want it in on the bed! Give it 2 or 3 days to fully expand for best results before sleeping on it. And this is heavy weighing in at 51 Lbs, os you may need help moving it. Speaking as someone who has a very bad back, if you have issues too, this euro top hybrid mattress is worth giving it a try to see if it helps you! Regular price $ 189.99 per the listing, which I think is a great pricepoint! ... show more
Reviewed in the United States on April 27, 2025 by TD

  • Very comfortable
The instructions are ridiculously tiny. Even with my reading glasses on and a light on I could barely read them. One part, though, says to unpack within 72 hours of receipt "to maximize spring and foam expansion." Probably would be a better idea to have that information where you can actually see it instead of in the virtually unreadable instructions INSIDE the plastic around the mattress. However, I really doubt these are packaged up right before shipping so I don't think it is a problem. I have another mattress that came this way that sat for months before it was opened and it is very firm and comfortable. All that being said, once it is opened up it is a very nice looking mattress. It does need to sit for a day or so to fully fill with air but then it firms up nicely. It offers good support yet it is cushiony. It is amazing that it can come in a box that size. There is a LOT of plastic holding it together but it opens up easily and fits the bed well. It is so much easier to get a mattress packed this way up stairs and mine had to go up two flights so that is a big plus. ... show more
Reviewed in the United States on May 11, 2025 by MN_Firefly

  • Perfect Mattress for Our Camper – Comfortable, Supportive, and Easy to Set Up
We ordered this 8-inch Gel Memory Foam Hybrid Full Size Mattress for our camper, and we couldn't be happier with our choice! From the moment we unboxed it, everything about this mattress impressed us. It came well-packaged and was super easy to unroll and set up. Within just a few hours, it expanded fully and was ready to use that same night. The comfort level is exactly what we were looking for—soft enough to cushion pressure points, but with just the right amount of firmness and support from the pocket springs. The gel memory foam layer really does help keep things cool, which is perfect for camping in warmer weather. Even in a smaller space like a camper, it doesn’t feel stuffy or hot. One of the best features is the motion isolation. When one of us turns over or gets up, the other barely notices. That’s a huge plus in a shared sleeping space! The edge support is also surprisingly sturdy, which is great for getting in and out of the bed in a tighter area. This mattress is CertiPUR-US certified, which gave us peace of mind about safety and quality—especially when using it in a small, enclosed space like a camper. Overall, this mattress exceeded our expectations. It's incredibly comfortable, offers excellent support, and turned our camper bed into a cozy retreat. Highly recommend it for anyone looking to upgrade their RV or camper sleeping setup! ... show more
Reviewed in the United States on April 21, 2025 by Crafty Momma

  • Love this mattress. Soft and supportive.
I got this mattress for my son's double bed frame. His frame is 14", does not use a boxspring and previously had a 6" standard spring mattress that was horribly bouncy. This has been a perfect pairing for his bed. His frame was on the taller side, and I didn't want anything too tall for him and 8" seems like a happy medium. Compared to his old mattress, this LETMOON memory foam mattress is somehow both softer and more supportive. You sink into the foam top, then are just gently supported from below. It's really sooooo much more comfortable than a regular standard spring mattress. My only complaint is that it was so tightly vacuum wrapped that I struggled to open it. Even using the "safe" opener they provide, I still managed to poke a small hole in the top cover. So, don't be like me and take your time during the opening process, lol. ... show more
Reviewed in the United States on April 22, 2025 by Edgar Allan

Can't find a product?

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