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UniPon

Firm Memory Foam Mattress Topper King - 3 Inch Charcoal-Infused Bed Topper for Back Pain Relief, Dual-Sided Firmness, CertiPUR-US Certified, Removable Cover

Based on 450 reviews
Condition: New
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$169.99
Save $50.00 was $219.99

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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Oct 28
Order within 7 hours and 2 minutes

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At a glance

Condition
New
Size
King
Style
3 in Firm Mattress Topper
Model
B0C8J3K558
Dimensions
80 x 76 x 3 in
Weight
27 lb
Color
Grey

Features 5

  • Firm Support for Better Sleep - Is your mattress too soft? Upgrade your sleep with this 3-inch firm memory foam mattress topper, specially designed to provide enhanced support and relieve back pain. Sleep soundly and wake up refreshed every morning.
  • Dual-Sided Firmness for Custom Comfort - Featuring 1 inch of charcoal-infused memory foam and 2 inches of high-density base foam, this topper provides customizable firmness to suit your preference. Enjoy balanced pressure relief and proper spine alignment for ultimate comfort.
  • Charcoal-Infused Foam with Breathable Design - Stay cool and fresh all night with our ventilated, charcoal-infused foam. It reduces odors, and promotes a clean, comfortable sleeping environmentperfect for sensitive skin.
  • CertiPUR-US Certified & Safe for Families - Crafted with CertiPUR-US and OEKO-TEX certified foam, this topper is made from certified materials, making it safe for your entire family. Experience healthy, worry-free sleep on a high-quality mattress topper.

Specs 14

Brand UniPon
Color Grey
Size King
Fabric Type Bamboo
Special Feature Customizable Firmness and Pressure-Relief
Closure Type Pull On
Product Care Instructions Machine Wash
Water Resistance Level Not Water Resistant

Frequently asked questions

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

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
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  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

Back saver
Size: Queen Style: 3 inch Firm Mattress Topper
I got this for my 1-year-old pillow top hybrid mattress that was too soft. I am a side-sleeper and started waking up with numbness in my fingers and pain in my shoulders. Before spending $1,000+ on a new mattress, I thought I’d try this to see if it could balance out the soft, sinking feeling that was causing pain and difficulty sleeping. I am incredibly glad I took the chance and bought this! It’s firm but not hard—exactly what I was hoping for. The top gives just enough and the bottom provides the firmness I desperately needed. I slept on this after unpacking it 5 hours prior. It was the best sleep I’ve gotten in months. The following night was even better. There was no detectable odor and the adjustable straps ensure it’s secure. I appreciate the top cover as it will protect my mattress and the foam topper. I did purchase extra deep sheets to accommodate the additional height this added to my 12” mattress. I highly recommend this topper if your current mattress is too soft and you’re looking for some additional support. It’s worth every penny and has drastically improved my sleep. ... show more
Reviewed in the United States on January 18, 2025 by Ana
Perfect
Size: Full Style: 3 inch Firm Mattress Topper
I got this topper because my bed was sinking. I was perfectly fine but my boyfriend was complaining about it and requested this for the bed for when he sleeps over. It was easy to set up. He had no issue with the heavy weight of the mattress. We left it on the bed and went to run errands. After 5 hours, we came home and decided to check on it. It was firm from the start but it felt more settled in. My boyfriend slept comfortable. My elbows when I am laying down my stomach doesn’t hurt. It’s pretty amazing. Solid bed. Doesn’t slip. The value is great. ... show more
Reviewed in the United States on December 6, 2024 by Cindy
It works fine so far!
Size: Twin Style: 3 inch Firm Mattress Topper
this seems to work well so far as a firm but comfortable sleeping surface.
Reviewed in the United States on November 10, 2024 by Carolyn Ricker
We love it!
Size: King Style: 3 inch Firm Mattress Topper
Bought this mainly for my husband due to him having back problems and ever since we bought it he has not complained and honestly I sleep better as well. Great buy and extra firm like it says
Reviewed in the United States on February 17, 2025 by Curtisa Young
AMAZING!
Size: Queen Style: 3 inch Firm Mattress Topper
Perfect comfort, the fabric is soft… love it!
Reviewed in the United States on February 1, 2025 by Reviewer
Absolutely WAY to firm!! No way to return!
Size: Queen Style: 4 inch Firm Mattress Topper
So I have a brand new DreamCloud bed which has great support but wanted just a little foamy cushion between me and the mattress. I have severely herniated disks in low back and neck and a soft memory foam pad isn't hard enough. The reviews for this were the best I'd seen for back pain which is why I bought it but it was firmer than my mattress was and seriously hard as a rock! It came in a smallish box, all compressed, and when I unrolled it it inflated into a 4 inch slab of concrete which almost had no give. I can't believe that the pictures they have of something sinking into it are correct because this thing is solid with no give. Super hard to move around cause it's like a stiff piece of combersum wood which I almost broke my overhead light with due to trying very hard to just flip it over in order to use the "soft side". There is no soft side. They are the same hardness and way uncomfortable. It's so hard in fact that I have no way of returning it because it won't even fold in half! Id have to find a box the size of a 4 inch thick, queen sized mattress and I don't know where the heck I'm going to find that. What am I supposed to do company? Please let me know cause I'm dying to know how to get rid of this thing... I guess I could chop it up into little pieces and send them back in a refrigerator box?? Please advise. Sincerely, Drew ... show more
Reviewed in the United States on February 19, 2024 by Diane Z
Amazing!
Size: King Style: 3 inch Firm Mattress Topper
I had major doubts. My mattress was like a trampoline and desperately seeking a solution to make it more supportive. Nailed it! Feels like a firm mattress again.
Reviewed in the United States on January 23, 2025 by Natalie
Great idea for a bed that is too soft, this topper makes it just right.
Size: Queen Style: 3 inch Firm Mattress Topper
Our guest bed was way too soft but with this topper it is perfect. Delivered on time and was exactly as described.
Reviewed in the United States on January 21, 2025 by Lori
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