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LETMOON 12 Inch King Size Mattress, Hybrid Pocket Spring Medium in Box | 12"King hybrid pocket spring mattress, medium-firm, motion isolated, breathable foam for comfortable nightly rest

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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Aug 7
Order within 13 hours and 6 minutes
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Item Firmness Description: Medium


Item Thickness: 12.0 Inches


Size: King


Features

  • SCIENTIFIC MULTI-LAYER DUAL SUPPORT SYSTEM. This premium hybrid king size mattress adopts an upgraded scientific multi-layer dual-support structure with thickened multi-layer foam and dense pocket springs. It perfectly balances soft wrapping comfort and strong spinal support, effectively disperses full-body pressure, and upgrades your daily sleep quality with stable and comfortable bearing performance.
  • DEEP ERGONOMIC BODY RELAXATION. Strictly designed based on human body engineering, this king mattress perfectly fits the natural curve of the human spine. It effectively relieves physical fatigue and muscle soreness caused by daily work and exercise, reduces morning body stiffness, and helps users quickly enter a deep and restful sleep state.
  • REINFORCED FULL-CIRCLE EDGE SUPPORT. Adopting upgraded full-circle edge reinforcement technology, this hybrid colchones king size effectively solves common problems such as edge sinking, rolling and collapse. It greatly maximizes the usable sleeping area of the mattress, ensuring safe and comfortable sitting and lying experience even on the mattress edge.
  • LONG-LASTING ANTI-DEFORMATION & ANTI-AGING. Built with high-toughness foam filling and integrated pocket spring core, this medium firm mattress king size features excellent compression resistance and aging resistance. It avoids local concave deformation and spring sagging after long-term use, effectively extending the overall service life of the mattress.
  • VACUUM COMPRESSION & EASY SETUP. This mattress adopts advanced vacuum compression packaging for convenient transportation and household installation, suitable for various bedroom and dormitory scenarios. Allow 2474 hours for the mattress king to fully expand and recover its flat shape after unboxing.

Description

Solid Structure&Reinforced Edge Support What's better, a hybrid or a memory foam? Foam mattresses are soft and body-conforming but less supportive and breathable. Hybrid mattresses combine springs and comfort layers for better support, breathability, and durability. Suitable for a wider range of people than foam mattresses. Who should sleep on a hybrid mattress? If a cooler sleep experience and a bouncier, supportive mattress tops your list of wants and needs, a hybrid mattress may be the right choice for you. Also provides a comfortable sleeping experience for side and back sleepers. How many years does a hybrid mattress last? Overall, the average lifespan of a hybrid mattress is usually 6-8 years. This varies depending on how well the mattress is maintained, how often it is used, and the weight and sleeping habits of the user. How to properly use and maintain a hybrid mattress? Ensure it is placed on a foundation with slats no more than 3 inches apart for proper support. Rotate the mattress every 3-6 months to prevent uneven wear and sagging. Avoid placing excessive weight on the mattress to prevent damage to the springs. Can I put a hybrid mattress on slats? Hybrid mattress can be placed on slats, but make sure the slat spacing is no more than 3 inches, the material is sturdy, and there is a center support beam to prevent sagging and provide adequate stability, support and breathable. We always take "Healthy Sleep, Natural Comfort" as our core concept. Combine American orthopedic sleep science with daily home use scenarios, balance softness and firmness, fit spine posture of adults, elders and teenagers. All materials comply with US domestic safety standards, zero peculiar smell, skin-friendly and breathable, suitable for bedroom, guest room, apartment and dormitory.

Brand: LETMOON


Size: King


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


Item Weight: 71 Pounds


Item Firmness Description: Medium


Top Style: Pillow Top


Cover Material: Fabric (likely blend, light-colored)


Number of Layers: 3


Fill Material: Memory Foam


Weight Limit: 500 Pounds


Item Firmness Description: Medium


Number of Layers: 3


Weight Capacity Maximum: 500 Pounds


Additional Features: Pressure Relief


Mattress Coil Type: Pocketed Coil


Construction Type: Hybrid


Number of Mattress Coils: 3


Mattress Base Compatibility: Box Spring, Slatted Base, Solid Foundation


Size: King


Item Dimensions L x W x Thickness: 80"L x 76"W x 12"Th


Item Weight: 71 Pounds


Item Thickness: 12 Inches


Item Depth: 12 inches


Item Dimensions: 80 x 76 x 12 inches


Cover Material: Fabric (likely blend, light-colored)


Fill Material: Memory Foam


Mattress Comfort Layer Material: Memory foam


Material Type: Memory Foam


Brand Name: LETMOON


Model Name: Hybrid Mattress


Product Benefits: Back Pain Relief, Improves Sleep, Reduces Toss & Turn, Stress Relief


Model Number: M-LA12K


Mattress Type: Standard Mattress


Manufacturer: LETMOON


Unit Count: 1.0 Count


Age Range Description: Aldult


Included Components: Memory foam&Hybrid Spring


Manufacturer Part Number: 12K


Set Name: 12" Mediium


top-style: Pillow Top


Color: White


Style Name: 12 inch


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Aug 7

Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • I will be replacing other mattresses with this brand!
Item Firmness Description: Medium Item Thickness: 12.0 Inches Size: King
I was skeptical of buying a mattress in a box, but am incredibly pleased. This mattress exceeded my expectation. Excellent value, extremely comfortable, perfect amount of firmness (yet soft enough to give a cloud feel).
Reviewed in the United States on July 8, 2026 by Michelle K

  • A great discovery
Item Firmness Description: Medium Item Thickness: 12.0 Inches Size: California King
This purchase was a well thought out decision. With so many options in mattresses that can be delivered we went with this one.Easy to unpack and unroll very comfortable, and the price was in our budget.
Reviewed in the United States on July 7, 2026 by Christina L Zahn

  • Great and comfy mattress
Item Firmness Description: Medium Item Thickness: 12.0 Inches Size: King
Super comfy and easy to open and set up. Mattress opens about 10 mins after opening bag and it has been helping with my back pains alot
Reviewed in the United States on July 17, 2026 by aric mijares

  • It worth it BELIEVE ME GIRL!!!
Item Firmness Description: Medium Item Thickness: 14.0 Inches Size: Queen (U.S. Standard)
Took me weeks to pull the trigger to buy this mattress and I’m so glad I did. Grew up playing sports so my back and neck have always gave me pain on super soft mattress. This mattress is a perfect balance of soft but firm. I saw a few reviews that mentioned it was “very firm” or “too firm” and I would have to disagree. It’s actually a very good mattress and has a good amount of softness from the pillow top. Mattress isn’t “too hard” believe me I would’ve returned it immediately. Mattress lives up to the description. I got the Queen 14inch since I do have a platform bed with wood slacks, to avoid gaps at the foot and headboard. Highly recommend getting a bookie board if you have slacks on the platform. It allows the mattress to lay flat and no movement of the wooden slacks. 10/10 mattress, high recommend for my side sleepers and ppl who have lower back and neck pain. ... show more
Reviewed in the United States on June 9, 2026 by Tressalynn

  • Super soft
Item Firmness Description: Medium Item Thickness: 14.0 Inches Size: Queen (U.S. Standard)
This is a very soft mattress heavy no odor at all set it up at 5PM and used it that night would recommend great value for the price.
Reviewed in the United States on July 6, 2026 by Amazon Customer

  • Miracle in a box!
Item Firmness Description: Medium Item Thickness: 14.0 Inches Size: Queen (U.S. Standard)
This is the first morning in years I woke without back pain. I have spent thousands on big name mattresses and this one blew them out of the water hands down. So so satisfied.
Reviewed in the United States on July 14, 2026 by Cyndi B.

  • Good Mattress Good Price
Very comfortable mattress-expanded to the exact dimensions listed in the description. Very comfortable-purchased a topper to make it extra comfortable and you don't even need it. Very fair price. Would purchase again.
Reviewed in the United States on October 16, 2025 by DDERESIN

  • Comfy mattress
I brought this mattress for my 5 year old in a full size and it's very comfortable and well worth what I paid for it.
Reviewed in the United States on August 6, 2025 by Kiah

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