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DUMOS

DUMOS 3 Inch Full Mattress Topper Cooling Gel Ventilated Memory Foam

Based on 568 reviews
Condition: New
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$35.96
Holiday Deal · 28% off was $49.99

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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Nov 18
Order within 9 hours and 28 minutes

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At a glance

Condition
New
Color
Light Purple
Size
Full
Item Thickness String
3 in
Model
HJ3-DU-TM-3F-PP
Material
Memory Foam
Age Range Description
Adult

Features 5

  • Cooling Gel Infused Memory Foam: Our memory foam mattress topper provides ergonomic pressure relief, helping alleviate back, neck, and shoulder pain. The flexible design perfectly contours to your body and is 100% compatible with a mattress without losing its shape
  • More Comfortable Sleep: The cooling gel foam mattress topper reduces heat and improves airflow, keeping you dry and comfortable all night. Customize your sleep experience for the perfect balance of softness and support. 1.5 inch/2-inch profile adds a soft layer of support to any mattress; 3-inch profile is very plush and adds even more comfort; 4-inch profile has an extra deep, plush, sink-in feel
  • Ideal for Side s & All Postures: Contouring high-density foam perfectly aligns the spine, making it specially suitable for side s, back, and stomach s to relieve shoulder and hip pressure. Note: This product is intended to be used on top of an existing mattress and is not designed for standalone use
  • Certipur-Us Certified: Made without harmful chemicals, our odor-free and hypoallergenic memory foam, the gel swirl memory foam topper meets or exceeds standards for content, emissions, and durability. ensures a safe, healthy sleep environment for sensitive s

Description

Good furniture can turn a house into a home! We hope that DUMOS furniture can serve as a companion to witness your relaxing moments at home and happy moments with your family. DUMOS's professional team works hard to understand your needs, devoting all their energy to creating safe, beautiful, high-quality, and functional furniture for you. The ultimate pursuit of DUMOS is to make you and your family feel happy!

Specs 22

Brand DUMOS
Color Light Purple
Size Full
Fabric Type Memory Foam
Special Feature Breathable, Cooling, Hypoallergenic, Non Slip
Brand Name DUMOS
Age Range Description Adult
Model Name DUMOS 3 Inch Full Mattress Topper Cooling Gel Ventilated Memory Foam

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Nov 18

Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • 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

Nice Addition to My Bed
Color: Blue Size: King Item Thickness String: 3 Inches
I am very pleased with this 3-inch memory foam mattress topper. It added an extra layer of comfort to my bed and made a noticeable difference in the quality of my sleep. The memory foam is soft and supportive, contouring nicely to my body while relieving pressure points. It hasn't gotten really hot yet, so I can't address the cooling feature. The topper expanded quickly after unpacking and fit my mattress perfectly. It feels plush without being too soft, providing the right balance of comfort and support. Since using it, I've been waking up feeling more rested and comfortable. Overall, this is an excellent mattress topper for anyone looking to upgrade their bed without purchasing a new mattress. Highly recommended for its comfort, quality, and value. ... show more
Reviewed in the United States on June 1, 2026 by andrew dee
Good quality, great buy
Color: Purple Size: Full Item Thickness String: 3 Inches
I was skeptical about this initially, however it decompressed nicely after about an hour. It’s so comfortable and makes a huge difference. I’m very happy with this purchase.
Reviewed in the United States on September 12, 2026 by Lola Angelina
Purple foam is king!!!
Color: Purple Size: Queen Item Thickness String: 2 Inches
OMG! I love this mattress pad!! And let me tell you, I've tried them all! From "pads" that were really just covers, to those fluffy ones that are basically comforters, some were better than others though. To two very expensive down and feather beds! One of which was really nice, but the feathers and down do settle down and lose fluffiness, so I was constantly having to take it off my bed and fluff it up.😫 I have a nice mattress so the two inch was all I needed. I just wanted a little more sinking in goodness!! This pad is perfect, my hips and shoulders sink in nicely so I'm not sore in the morning, but not too much so my spine stays aligned. Ahhhhh!! The size is a perfect queen and covers my entire mattress. I read a ton of reviews and a lot of them for the inexpensive blue and white pads complained they were hard. So I decided to pay a little more for the purple.💜 Good call! Lol! Been sleeping on this for a while now and it's amazing! No slipping around and it hasn't flattened at all, excellent bounce back. Like sleeping in a soft supportive cloud!! Honestly, having a hard time getting out of bed in morning!! Sooooo comfy!! Would definitely recommend! ... show more
Reviewed in the United States on July 14, 2026 by muttmama71
Worth the money!
Color: Blue Size: King Item Thickness String: 3 Inches
This mattress topper is a dream to sleep on. I ordered the 3 inch and let it expand for 48 hours before putting it on my bed and it fluffed up to the thickness advertised. It did not have a strong odor, it was easy to handle and unroll. It is a good quality topper and well made. Since adding it to my relatively new mattress, I have had no hip or shoulder issues waking me up at night. It is both supportive and cloud-like at the same time. My only issue with this topper is that it is not very cooling. It doesn't hold heat like others I've tried, but it's not the most breathable either. All in all, well worth the money. ... show more
Reviewed in the United States on August 4, 2026 by judith perkins
Affordable and awesome comfort!
Color: Purple Size: Twin XL Item Thickness String: 4 Inches
I got the 4 inch topper for my dorm bed and it’s SO comfortable! It’s very soft but I still feel supported in the right places. It did not have a super strong odor upon opening, and the factory scent went away after one night. I’d 100% recommend this one if you’re moving into a dorm with those notorious mattresses, or if you just need some extra comfort for your bed at home! 🛌 ... show more
Reviewed in the United States on August 23, 2026 by LB
Great, Comfortable and good price!
Color: Light Purple Size: Full Item Thickness String: 3 Inches
So far so good, left it to expand and slept on it yesterday, definitely makes a difference in my convertible sofa bed and very comfortable!! Got the full size after taking the measurements.
Reviewed in the United States on September 2, 2026 by Alejandra P.
Side sleeper solution
Color: Blue Size: Twin Item Thickness String: 3 Inches
This mattress pad has enabled me to return to sleeping with my husband! We had bought a new mattress that he loved, but it’s too firm for me. I’m a side sleeper, and I was actually suffering from nerve compression and chronic shoulder and hip pain. We tried a quilted cover, but that didn’t help. I was having to sleep in the guest room. We have a King size bed, so the twin pad takes up exactly half the bed. It adds 3” of height to my side, which isn’t ideal, but otherwise it’s perfect. It offers the perfect balance of support and comfort by sinking in to fit my curves. Some reviews mention smell, but I didn’t notice any smell at all. ... show more
Reviewed in the United States on June 24, 2026 by Tom Harland
Transformational!!
Color: Blue Size: King Item Thickness String: 3 Inches
We bought several of these for the spare bedrooms in the house. They are literally transformational. We bought cheap mattresses since they were only spare rooms, and these toppers make the beds feel like they were high end. They are durable, breathable and extremely comfortable. As far as “cooling” goes, I’m not quite sure if that’s a gimmick or real but I didn’t notice a big difference. They weren’t hot though like some of the earlier toppers. I do recommend them though. Pros: comfortable and helps with back pain Cons: not sure if they really cool you or not ... show more
Reviewed in the United States on September 18, 2026 by Kindle Customer
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