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12 Inch Black King Mattress, King Size Memory Foam Mattress for Cool Night & Spinal Alignment, Pressure Relief & Motion Isolation, Edge Support, CertiPUR-US Certified (Black, 12" King)

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Availability: Only 9 left in stock, order soon!
Fulfilled by THCTVOUS

Arrives Saturday, Jun 13
Order within 16 hours and 36 minutes
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Color: Black


Size: 12" King


Features

  • Targeted Support for Back Pain Relief: Our Ergonomic 3-Zone Design provides superior Targeted Lumbar Support compared to a standard 12 inch king mattress. By ensuring perfect Spinal Alignment for both side and back sleepers, this king size hybrid mattress contours to your bodys unique curves to relieve pressure points and facilitate deep muscle relaxation.
  • Advanced Cooling & Heat Dissipation: Utilizing Gel-infused Memory Foam and breathable technology, our design offers better airflow than a typical king size mattress and box spring set. The moisture-wicking knitted fabric and copper-infused layers ensure you sleep cool all night long, maintaining a crisp, temperature-neutral surface.
  • Zero Motion Transfer for Undisturbed Rest: Perfect for couples with different schedules. Our Individually Wrapped Coils work independently to absorb movement at the source. This hybrid king mattress ensures that even if your partner tosses, turns, or gets up in the middle of the night, you won't feel a thing. Enjoy a boutique hotel sleep experience with absolute partner disturbance-free stability.
  • Reinforced Edge Support & Unique Style: Maximize your sleeping surface with our high-density Perimeter Support. Unlike beds that sag when you sit on the edge to put on shoes, our reinforced borders ensure No Sinking. This sleek black king mattress features a modern aesthetic that elevates any bedroom decor, offering more usable space and "high-end" durability than most king size mattresses 12 inch.
  • Correct Unpacking Steps: Setting up your bed in box king mattress is effortless. Simply move the box to your bedroom, unbox, and carefully tear the plastic film by hand to watch it expand. For the best results, place it flat and allow 72 hours to fully reach its optimal loft.

Brand: Thctvous


Size: 12" King


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


Item Weight: 104 Pounds


Item Firmness Description: Medium Firm


Top Style: Tight Top


Fill Material: Memory Foam


Weight Limit: 800 Pounds


Special Feature: Breathable, Durable, Pressure Relief, Stain Resistant


Color: Black


Item Firmness Description: Medium Firm


Weight Capacity Maximum: 800 Pounds


Additional Features: Breathable, Durable, Pressure Relief, Stain Resistant


Mattress Coil Type: Pocketed Coil


Construction Type: Hybrid


Size: 12" King


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


Item Weight: 104 Pounds


Item Dimensions: 80 x 76 x 12 inches


Item Depth: 12 inches


Fill Material: Memory Foam


Mattress Comfort Layer Material: Comfort Foam


Material Type: Foam


Brand Name: Thctvous


Model Name: Hybrid Mattress


Product Benefits: Improves Sleep, Posture Support, Stress Relief


Model Number: Black Mattress


UPC: 750369778583


Manufacturer: Thctvous


Manufacturer Part Number: mattress in a box


Unit Count: 1.0 Count


Included Components: Individually Pocketed Innerspring


top-style: Tight Top


Color: Black


Style Name: Modern Minimalist


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Jun 13

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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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • LOVE IT
Color: Pink Size: 14" King
Love it huge mattress very satisfying with my purchase great firmness easy to set up good sleep quality very good Quality sleep
Reviewed in the United States on May 11, 2026 by Katherine

  • Love it
Color: Black Size: 14" Kin
I love my new mattress just what I expected
Reviewed in the United States on April 26, 2026 by Momo

  • Firm, Comfortable, and Worth It!
Color: Black Size: 10" Quee
It is very good and comfortable if you want to to have a good sleep you should buy one. You will love it.
Reviewed in the United States on April 4, 2026 by Amazon Customer

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