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King Size Mattress, 12 Inch King Mattress in a Box, Medium Firm with Memory Foam and Pocket Springs, Strong Edge Support, Pressure Relief

  • Based on 342 reviews
Condition: New
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$289.99 Why this price?
Save $110.00 was $399.99

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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, May 9
Order within 1 hour and 15 minutes
Available payment plans shown during checkout

Size: King


Style: 12 Inch


Features

  • Comfort for All Sleepers: The LETMOON 12 inch king size mattress, at 80"x76", combines memory foam and pocket springs to support users under 500 pounds. The medium firm feel offers all - round comfort for every sleeping position
  • Superb Motion Isolation: With independent pocket springs, this king bed mattress minimizes the impact of your partner's movements. The reinforced edge springs not only enhance durability but also prevent you from slipping off, giving you an undisturbed sleep
  • Cool & Breathable Design: Featuring breathable knitted fabric and high - density foam layers, the king size 12 inch mattress keeps you cool throughout the night. It efficiently wicks away steam and sweat, ensuring you stay dry and comfortable
  • Safe & Quality Assurance: The high - quality knitted fabric and pillow top, along with multi - layer premium foam, are used in this king mattress. Certified safe and fiberglass - free, it guarantees long - term health and sleep quality for all consumers
  • Hassle - Free Purchase: Compressed, rolled, and sealed in a box, the LETMOON king mattress ensures easy transportation and setup. Enjoy a 100 - night risk - free trial and a 10 - year warranty. Let it expand for 24 - 72 hours after unpacking

Brand: LETMOON


Size: King


Product Dimensions: 80"L x 12"W x 76"Th


Top Style: plush_top


Fill Material: Memory Foam


Special Feature: Pressure Relief


Color: Black


Age Range (Description): Aldult


Manufacturer: LETMOON


Product Dimensions: 80 x 12 x 76 inches


Item Weight: 73.3 pounds


Manufacturer: LETMOON


Date First Available: January 7, 2025


Age Range Description: Aldult


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 9

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


  • Great product
Size: King Style: 12 Inch
Comfortable, great product for a reasonable price
Reviewed in the United States on April 7, 2025 by Janie

  • great value
Size: King Style: 12 Inch
took a chance on this with a California King, I put 3/4 ply under it above 1x4" and it was very comfortable, firm yet soft.
Reviewed in the United States on April 8, 2025 by TeddyKGB

  • Great mattress!
Size: Full Style: 9 Inch
We are so happy with this purchase! We ordered this mattress for my daughter's bed and she loves it! It was easy to unpack and is very comfortable.
Reviewed in the United States on April 15, 2025 by Christin Johnson Christin Johnson

  • B+
Size: King Style: 14 Inch
For the $ it's excellent, very comfortable,let it decompress a few days, edge support isn't the best
Reviewed in the United States on April 19, 2025 by jp

  • Comfortable
Size: King Style: 12 Inch
Very quick delivery and very very comfortable mattress
Reviewed in the United States on April 9, 2025 by Jasmin Goodspeed

  • Very sturdy!! Great buy
Size: Full Style: 9 Inch
Great purchase!!!!
Reviewed in the United States on April 17, 2025 by Angela

  • Would recommend
Size: Full Style: 9 Inch
Very comfortable, firm and sturdy, highly recommended for the price.
Reviewed in the United States on April 2, 2025 by Andrew smith

  • Great buy for its price
Size: King Style: 14 Inch
It's comfyyy! It's soft but still have support, and it really expanded to about 14".
Reviewed in the United States on April 11, 2025 by Ellise Mutia Ellise Mutia

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