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OhGeni 12 Inch King Size Mattress, Cooling Gel Memory Foam Bed Mattresses in a Box, Cool Touch Surface, Medium Feel,Ergonomic Support & Pressure Relief, CertiPUR-US Certified Foam, Designed in USA

  • Based on 211 reviews
Condition: New
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Availability: 20 left in stock
Fulfilled by Amazon

Arrives Wednesday, Jul 2
Order within 8 hours and 29 minutes
Available payment plans shown during checkout

Size: King


Style: 12 Inch


Features

  • Cool Touch Surface: Wake up refreshed every morning with breathable, heat-wicking fabric designed to keep you cool all night; prevents overheating for a more comfortable sleep
  • Pressure-Relieving Memory Foam: Memory foam contours to your body, delivering targeted pressure relief exactly where needed; helps you drift into deeper sleep
  • Perfect Medium Feel: Enjoy a balanced medium feel that offers a great mix of softness and firm support; suitable for all sleep positions
  • Ergonomic Support for Total Comfort: Mattress aligns with your bodys natural curves, reducing pressure points; enhances comfort for a more restful sleep
  • Motion Isolation for Undisturbed Sleep: Share your bed, not the movement; mattress minimizes motion transfer for uninterrupted sleep
  • Certified Materials: Made with CertiPUR-US foam and OEKO-TEX Standard 100 certified materials; free from fiberglass for safer sleep; CertiPUR-US certified foam is tested for substances that could impact health

Brand: OhGeni


Size: King


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


Top Style: Gel Top


Cover Material: 52% Polyester,31% Nylon,16% Ice Silk,1% Spandex


Number of Layers: 6


Fill Material: Gel Memory Foam, Memory Foam, High Density Foam


Special Feature: Pressure Relief, Washable, Breathable, Low Motion Transfer, Removable Cover


Color: Black & White


Model Name: 12 Inch King Size Mattress


Product Dimensions: 80 x 60 x 12 inches


Item Weight: 40.9 pounds


Manufacturer: Healthcare SC, LLC


Country of Origin: USA


Item model number: MC5V111


Date First Available: November 18, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jul 2

Yes, absolutely! You may return this product for a full refund within 100 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


  • Good for 3 year old
Size: Twin Style: 8 Inch
I bought a full and a twin for my daughter’s bunk bed. It does squish down when grown ups sit on it but pops back up. It’s good firmness for a child or toddler - she’s just now 3 years old and has been using the mattress for 4+ months. She sleeps great. She has a condition that flares up with inflammation in her hip or knee with viral illnesses so I was really wanting something firm for her little body and good quality. I can also fairly easily change the sheets because it’s not so heavy that I can’t maneuver the fitted sheet or back side or pull it up and out when I need to. ... show more
Reviewed in the United States on May 27, 2025 by Sarah Sakala Sarah Sakala

  • Great Mattress
Size: Queen Style: 12 Inch
Had this mattress for about 6 months now. I own a house and summer cottage cottage with a total of 10 beds of different sizes many I will be replacing. I will be replacing them with these. The one I own now is so comfortable, I get the best sleep I've had in years.
Reviewed in the United States on April 25, 2025 by Don R.

  • Not too soft which is what I wanted
Size: Queen Style: 12 Inch
Medium firm. Not too hot at night. Love it. My concern was I’d get a marshmallow but this hit the spot. Opted for the 12” option.
Reviewed in the United States on May 7, 2025 by DAVID HOVDE

  • Great for overnight guests not daily use
Size: Twin Style: 8 Inch
Comfy enough for a weekend visit from mother-in-law, uncomfortable enough that 2 days gets her to return home. Great for occasional guests, probably not great for everyday use.
Reviewed in the United States on April 19, 2025 by Amazon Customer

  • Pleasantly surprised!
Size: Full Style: 8 Inch
We were shocked when we ordered a mattress and box spring from Amazon to replace an airmattress at our kids' house. We were visitng and couldn't handle another night on the air mattress that I had purchased on a previous visit. The set was delivered the next day in tall boxes and we thought there was no way we are going to find this comfortable. Wow! The box spring set up was amazing (amazing engineering!) and SO supportive and the mattress was equally supportive and comfortable. Not a luxury set up by any means, but a great option for a comfortable mattress set. We were very pleasantly suprised. ... show more
Reviewed in the United States on March 26, 2025 by Anne B

  • Very nice
Size: King Style: 12 Inch
Feels great, been a month with it, it is softer then my previous mattress, first time for me having a memory foam. Easy set up took it out the box, opened at in less then 8 hrs it was ready, but I did wait the recomended time
Reviewed in the United States on April 20, 2025 by Myrian Myrian

  • Perfect
Size: Queen Style: 10 Inch
Super comfy and cool to sleep on!
Reviewed in the United States on May 9, 2025 by James Osborne

  • Real nice mattress
Size: Full Style: 8 Inch
Not gonna lie, this is my first non-spring mattress and I love it. It inflated in like 12 hours (I still let the 48 hours past though) and the mattress had no strong odors. I personally love firm mattresses and this is very firm but just soft enough where there is proper support and it stays cool which is amazing ... show more
Reviewed in the United States on April 3, 2025 by anjani durjan

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