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YBYX

King Mattress, 12 Inch King Size Hybrid Mattress with Memory Foam & Pillow Top‑Medium Firm Feel for Motion Isolation, Edge Support, Pressure Relief‑Bed in a Box, CertiPUR‑US Certified

  • Based on 189 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Oct 27 – Oct 28
Order within 18 hours and 1 minute
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Size: King


Set name: 12 Inch


Features

  • Hybrid mattress is more comfortable This hybrid mattress king is built with highdensity memory foam and hundreds of individual pocket springs. It delivers robust support for every curve of your body and evenly distributes weight from head to toe. Ergonomic construction protects your spine, balances body posture and relieves pressure points. Suitable for all sleepers to bring you restful, blissful sleep!
  • High Quality Healthy Materials The top cover of this 12inch hybrid mattress adopts skinfriendly knitted fabric with CertiPURUS and OekoTex Standard 100 certifications. Free of harmful substances, the cover fabric is breathable and moistureabsorbent. It dissipates body heat quickly and accelerates moisture evaporation, delivering safe and cozy sleeping experience for your whole family.
  • Motion Isolation, Undisturbed Sleep Crafted with soft breathable knitted top cover, multilayer memory foam and hundreds of independent pocket springs. It effectively reduces movement transfer between sleepers for a peaceful sleeping environment. This hybrid memory foam mattress keeps you undisturbed when your partner tosses and turns, allowing you to enjoy deep restful sleep all night long.
  • Easy Installation & Wide Compatibility YBYX king mattress arrives compressed and rolled in a box for easy oneperson transport to your bedroom. Simply unbox and unfold. Please allow 4872 hours for full decompression and odor dissipation, no extra assembly required. Works perfectly with box springs, slatted bed frames, platform beds and metal bed bases.
  • CertiPURUS Certified Foam All foams of this mediumfirm mattress are CertiPURUS certified for safety and longlasting performance. Please allow up to 72hours for the mattress to fully expand after unboxing. Please use caution while unboxing due to fast expansion speed.

Description

At [YBYX] ,we design mattresses for everyday home rest. We select reliable materials and apply careful workmanship to deliver balanced comfort and supportive feel for different sleep positions. Our designs focus on practical home‑use performance, built to support restful nights. We aim to help you wake feeling refreshed for your day‑to‑day life. Browse our range to find a fit for your sleep habits！

Brand: YBYX


Size: King


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


Item Weight: 86.2 pounds


Item Firmness Description: Medium Firm


Top Style: Microcoil Top


Number of Layers: 4


Fill Material: Memory Foam, High Density Foam


Color: Black


Model Name: Mattress


Item Firmness Description: Medium Firm


Number of Layers: 4


Construction Type: Hybrid


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: 86.2 pounds


Item Thickness: 12 inches


Item Depth: 12 inches


Item Dimensions: 80 x 76 x 12 inches


Fill Material: Memory Foam, High Density Foam


Mattress Comfort Layer Material: Memory foam


Material Type: MaterialGel Memory Foam, High Density Foam


top-style: Microcoil Top


Color: Black


Brand Name: YBYX


Model Name: Mattress


Model Number: MAT


UPC: 762849713090


Number of Items: 5


Mattress Type: Standard Mattress


Manufacturer: YBYX


Unit Count: 1 Count


Included Components: Gel Memory Foam, High Density Foam, Memory Foam


Manufacturer Part Number: A-K12-01


Set Name: 12 Inch


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 27 – Oct 28

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.

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Top Amazon Reviews

    • Great for a spare bedroom
Size: Queen Set name: 10 Inch
Really good mattress, pleased with the firmness level. Price was excellent. Great for a spare bed setup.
Reviewed in the United States on August 19, 2026 by Melanie Roussel
    • Best Option Out There
Size: Queen Set name: 12 Inch
I may return to this review after sleeping on it for a few months - but for now it is absolutely perfect. Great value on the price. Exactly the amount of firm I hoped towards. Easy to get out of it's box, expands to the right size. I could set it on my bed all by myself, so not too heavy. Great quality, good support for my bad back. Really strong on the corners. Wish I had gone for the 14 inch instead of the 12, but exactly what I asked for in my purchase. ... show more
Reviewed in the United States on April 6, 2026 by Erin Lipski
    • Super comfy mattress
Size: Full Set name: 10 Inch
This mattress is very comfy to sleep on. It was fast to decompress! Was able to sleep on it the same day. It’s a nice firm but not too stiff. It does have a soft cushion. Would recommend to friends and family! 😊
Reviewed in the United States on August 7, 2026 by Cristian Teran
    • Works for us.
I was very skeptical of this mattress however have been pleasantly surprised. The initial odor was very light, took shape quickly, is both firm and supportive, and does not cause any night sweating. Everyone’s comfort level is different but this has been great for us. At this price if it had not been a good match we would have moved it to a spare bedroom and gone back to a conventional mattress. Well worth a try. ... show more
Reviewed in the United States on May 20, 2026 by R. E. Ratliff
    • Good quality affordable Mattress. Bought for College student's new apartment.
Size: Full Set name: 12 Inch
Bought this Mattress for my daughter's new apartment. Price was very affordable. She hasn't had any complaints and has been very happy with it. I tried it myself and it's a little on the firmer side. Which isn't a bad thing but some people like that and some do not. Seems to be of a good quality. Would recommend ... show more
Reviewed in the United States on August 1, 2026 by David
    • Comfortable twin mattress
Size: Twin Set name: 12 Inch
I’m really happy with this mattress. It’s comfortable, the 12-inch size gives good support, and it fits my twin bed perfectly. It expanded nicely after opening and feels supportive without being too firm. Overall, I’m very satisfied with my purchase.
Reviewed in the United States on August 4, 2026 by Rosekerline sabila jeancoute
    • Everyone wants the link to this mattress after they lay on it!
Size: Twin Set name: 12 Inch
Great mattress for my daughter! It fully inflated immediately upon opening the inner seal—it was like a scene out of a cartoon! 😆 She was able to sleep on it within hours of setting it up. The mattress had no odor. I was worried we’d have to off gas it, but it was totally fine! She’s sleeping great and no longer complaining of back pain. All the adults that have laid on it are just as impressed as she is! It’s firm, supportive, and has just the right amount of squish. Definitely recommend!! ... show more
Reviewed in the United States on June 5, 2026 by Amazon Customer
    • Just springs
Size: Queen Set name: 12 Inch
Destroyed my back in 2 days. It’s just springs and like an inch on foam.
Reviewed in the United States on August 13, 2026 by Ares

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