12" Copper Gel Infused Cooling Memory Foam Mattress - Medium Firm, Back & Side Sleepers (12BNCOPPER)
Model 12BNCOPPER
or 4 interest-free payments of $92.25 with Klarna
Crossed-out price = manufacturer’s suggested retail price (MSRP). What “Regular” means
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SKU: 12BNCOPPER-TL
Model codes Model: 12BNCOPPER
- Twin XL:
12BNCOPPER-TL - Full:
12BNCOPPER-F - Queen:
12BNCOPPER-Q - King:
12BNCOPPER-EK - Cal King:
12BNCOPPER-CK - King Split:
12BNCOPPER-EKS-SET - Cal King Split:
12BNCOPPER-CKS-SET - King Split Head:
12BNCOPPER-EKSH - Cal King Split Head:
12BNCOPPER-CKSH - Queen Split Head:
12BNCOPPER-QSH
Model numbers: 12BNCOPPER, 12BNCOPPER-TL, 12BNCOPPERTL, 12BNCOPPER TL, 12BNCOPPER-F, 12BNCOPPERF, 12BNCOPPER F, 12BNCOPPER-Q, 12BNCOPPERQ, 12BNCOPPER Q, 12BNCOPPER-EK, 12BNCOPPEREK, 12BNCOPPER EK, 12BNCOPPER-CK, 12BNCOPPERCK, 12BNCOPPER CK, 12BNCOPPER-EKS-SET, 12BNCOPPEREKSSET, 12BNCOPPER EKS SET, 12BNCOPPER-CKS-SET, 12BNCOPPERCKSSET, 12BNCOPPER CKS SET, 12BNCOPPER-EKSH, 12BNCOPPEREKSH, 12BNCOPPER EKSH, 12BNCOPPER-CKSH, 12BNCOPPERCKSH, 12BNCOPPER CKSH, 12BNCOPPER-QSH, 12BNCOPPERQSH, 12BNCOPPER QSH
- Free FedEx shipping anywhere in the US, incl. Alaska & Hawaii
- 10-year limited warranty from the manufacturer. Details
- Ships fast: orders are typically processed within 1 business day
- CertiPUR-US® certified foams (per the manufacturer)
- Real help: text John at 818-924-3744, 6 AM–9 PM PT
- Secure checkout by Stripe. Card or pay over time with Klarna. Purchase Policy & Warranty
Not sure which one? Take the 1-minute Mattress Finder to see your best match (you can text the results to John), or compare every model on the comparison chart. · Purchase Policy & Warranty
Same factory-made quality for less. Why our prices are lower
Call or text 818-924-3744, 6 AM–9 PM PT.
Pairs well with
Thinking about an adjustable base? These fit this mattress. Text John if you want help picking.
Details
Softness Scale
Copper-infused foam for cooling comfort. The top layer of 2” Copper Memory Foam helps neutralize temperatures and dissipate odors for cooling comfort. The 1” layer of Memory Foam prevents motion transfer, while the 2” Support Foam and 7”Air Grid™ Base work together to provide reinforced support for a longer-lasting mattress.
Mattress Layers
- 2” Copper Memory Foam
- 1” Memory Foam
- Edge Support
- 2” Support Foam
- 7” Air Grid™ Base Foam
Mattress Cover
The zip-off machine-washable cover is easy to clean and reduces allergens when laundered.Setup
- PLACEMENT: Before opening, place the mattress on a proper surface such as a continuously solid surface, an adjustable base, or slats no more than two (2) inches apart capable of supporting the mattress and users.
- UNWRAP: Use scissors to unwrap and unroll the mattress from the plastic; DO NOT USE A RAZOR BLADE.
- EXPAND: Allow the mattress to expand. The mattress may take up to 72 hours to fully recover and return to its original shape. You can sleep on it right away while it finishes expanding.
Care Instructions
- The mattress cover is machine-washable, wash on a cold, gentle cycle with like colors, and air dry without heat.
- A mattress protector is recommended, but not required, to protect and increase the mattress's longevity. Liquid damage of any kind does not qualify for a warranty replacement. If a liquid spill occurs, remove the cover immediately and allow the area to dry before covering it with the mattress cover.
- Do not dry clean, bleach, iron, or steam.
- Rotate your mattress to give uniform wear to the sleeping surface.
- Do not stand or jump on the mattress.
- Do not fold or bend for extended periods
- Do not allow moisture to saturate the mattress.
Delivery
- The mattress is compressed and rolled for quick small parcel delivery
- Nationwide Free Shipping!!!
- Delivery within 3-5 Business Days
Warranty
10-year limited warranty. A waterproof mattress protector is recommended to prevent liquid spills from penetrating the mattress. Liquid spills do not qualify for warranty claims.Certifications
CertiPUR-US certified. Certified foams are made without formaldehyde, phthalates, ozone depleters, heavy metals, PBDEs, or the following Tris flame retardants: TCEP, TDBPP, TDCPP, or TEP. The foam is low VOC (Volatile Organic Compound) emissions for indoor air quality. Visit certipur.us for more information.All mattress sizes & prices
| Mattress Size | Regular | Our price |
|---|---|---|
| Twin XL - 80"L x 38"W | $369 | |
| Full - 75"L x 54"W | $479 | |
| Queen - 80"L x 60"W | $519 | |
| King - 80"L x 76"W | $659 | |
| Cal King - 84"L x 72"W | $659 | |
| King Split - 80"L x 76"W | $789 | |
| Cal King Split - 84"L x 72"W | $789 | |
| King Split Head - 80"L x 76"W | $699 | |
| Cal King Split Head - 84"L x 72"W | $699 | |
| Queen Split Head - 80"L x 60"W | $609 |
“Regular” is the manufacturer’s suggested retail price (MSRP) for the same model, shown for comparison. It is not a price we previously charged. Learn more
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Helpful guides
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Customer reviews (2)
5.0 on Google (5 reviews)
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Veronica Verified buyerI forgot to mention and can't seem to edit original review... I purchased mattress covers and sheets from them. They are AMAZING! ;-)
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Veronica Verified buyerI’m back with another glowing review for MimiMattress.com this time, giving well-deserved credit to the original mattress I purchased last year that started it all!
Last year, I purchased the 12 Inch Copper mattress for our guest bedroom, and honestly, it changed everything. (AND THE PRICE IS INSANE) On those restless nights when my Purple just wasn’t cutting it, I’d sneak into the guest room and sink into this Copper beauty. It delivered the most incredible, deep, cooling sleep I’d had in forever way better than what I was getting in my main bedroom. The quality was top-notch, the comfort was luxurious, and the price was such an unbelievable steal that I kept thinking, “How is this even possible?”
Fast forward a year: After I recently reviewed and raved about the upgrade to the Cal King Active Copper (which is phenomenal, by the way!), I realized I owed it to this original 12 Inch Copper to give it its proper shout-out. It took me a while to get around to writing this second review, but better late than never this mattress truly earned every bit of praise. It was the one that proved to me (and my skeptical husband) just how amazing MimiJohn mattresses are, as I mentioned, the owner actually picks up the phone directly when you call. (He says that is how they keep prices low).
Thanks to that faithful Copper, my husband finally insisted we upgrade our main bedroom too, and now we’re both sleeping like never before. The old Purple? Long donated to my niece. Our bedroom? Officially a sleep sanctuary.
I was cautious at first and even chatted with the owner (John) to confirm everything was legit and it absolutely is. This company delivers real, exceptional quality at prices that make luxury accessible.
If you’re still on the fence, trust me, it might just become your new favorite hobby (Sleeping that is)... Highly recommend MimiJohn.com you won’t regret it!
Veronica H.
FUN FACT: I am weird I know, but I thought I would share the owners are Mimi & John and that is MimiJohn.com I thought that was cute.
