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King Size Mattress [New Version], 12 Inch Gel Memory Foam Hybrid Mattress King Bed in a Box, Pressure & Pain Relief, Medium Firm, Individual Pocket Spring, Edge Support, CertiPUR-US

  • Based on 260 reviews
Condition: New
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Returnable until Jan 31, 2026

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Availability: Only 10 left in stock, order soon!
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Arrives Monday, Mar 23
Order within 18 hours and 8 minutes
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Color: White


Size: King


Style: 12 Inch


Features

  • BETTER SUPPORT & PRESSURE RELIEF: LETMOON 12 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 700 pounds, provides medium 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 12 inch king mattress size is 80" x 76" x 12". 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 ASK 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 12"Th


Top Style: Euro Top


Cover Material: Knitted Fabrics


Number of Layers: 7


Fill Material: Gel Memory Foam


Weight Limit: 700 Pounds


Special Feature: Pressure Relief


Color: White


Item Weight: ‎103.8 pounds


Product Dimensions: ‎80 x 76 x 12 inches


Item model number: ‎12 Inch King Mattress -LMS72752


Age Range Description: ‎Adult


Date First Available: September 26, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Mar 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
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • 24 hrs bed was ready to sleep on
Color: White Size: California King Style: 14 Inch
Bed is everything as expected , nice mattress for the price point thought it was going to be too firm is just right on the comfort level , old manage was showing its age at 9 years old , vey happy with the purchase
Reviewed in the United States on October 30, 2025 by Mike

  • Best bed I’ve ever owned
Color: White Size: California King Style: 14 Inch
This bed is perfect! Best nights of sleep I’ve had as an adult! I purchased the California King 14” and it definitely exceeded my expectations. I sleep on my sides, stomach, and back… it’s comfy in every position.
Reviewed in the United States on October 26, 2025 by Valerie Barrineau

  • Comfortable bed
Very comfortable bed! Arrived in great condition and easy to set up. It began to plump up immediately but did take a full 24 hours to fully reach its size. It's just the right mix of soft and firm. I gave it to my older son for his birthday and the mattress rests on a metal frame without issue. He absolutely loves it over his old traditional spring mattress. ... show more
Reviewed in the United States on October 14, 2025 by MineandYours

  • Comfortable, Good value for the $
This mattress is in our spare room. We have been told that it’s comfortable and stays cool over night, no heat trapping. It came in box and was easy to set up.
Reviewed in the United States on August 15, 2025 by Andrea Sischo

  • Awesome bed
It is Great, I love it because it’s comfortable I have not woke up with a backache since I started sleeping on this the other bed that I had I could fill the spring sticking in me and it made my back hurt. This bed is awesome. I would recommend it to anyone I also love that it has the two drawers at the bottom for storage. I can put whatever I want in there whether it be blankets or I can put like a little board down there and put like my crochet stuff down There and I like the headboard that it’s got those spaces where I can put my phone my iPad it’s got the charging station where I can hook up my chargers for my phone and stuff right there at the head where I don’t have to go getting up and go hunting for something to charge. It’s right there. I also love the side pockets on it because you can put your remotes in there and all you have to do is just re-right there and get it. You ain’t gotta get up and walk over to a table or something to pick up a remote. I have degenerative spine disease also a cancer patient I stay in a lot of pain a lot of times and this helps a lot whenever I’m feeling bad all I have to do is just go lay in my comfy bed and just relax and I start feeling 100% better. ... show more
Reviewed in the United States on August 17, 2025 by Annie M Borden

  • Great Buy!
Extremely comfortable bed. Well made and easy to set up. I let it fill out for 48 hours. A great buy. Highly recommend.
Reviewed in the United States on October 19, 2025 by Mari

  • dissatisfied
Color: White Size: King Style: 12 Inch
When we look at the product photo, we think it will be similar, but what I received is different; the height is different, it's not sturdy, and the image shows a vignette, but it doesn't even come with that. I completely disagree with the product.
Reviewed in the United States on November 12, 2025 by Mario Moreno

  • Love the mattress
Color: White Size: California King Style: 14 Inch
Great mattress, good quality for the price. Didn't even have a funny smell like most memory foam, do
Reviewed in the United States on October 9, 2025 by john

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