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Dyonery Memory Foam Mattress Topper – 3"/4" Plush, Firm & Extra Firm, Cooling Gel, Back Pain Relief - 2 of 4Dyonery Memory Foam Mattress Topper – 3"/4" Plush, Firm & Extra Firm, Cooling Gel, Back Pain Relief - 3 of 4Dyonery Memory Foam Mattress Topper – 3"/4" Plush, Firm & Extra Firm, Cooling Gel, Back Pain Relief - 4 of 4
Dyonery Memory Foam Mattress Topper – 3"/4" Plush, Firm & Extra Firm, Cooling Gel, Back Pain Relief - 1 of 4

Dyonery 4" King Extra Firm Mattress Topper – Dual-Sided Gel & Bamboo Foam, Back Pain Relief, Flippable Comfort

$139.99 reg $195.99
Sale save $56.00 (29% off)

In Stock

Sold & shipped by HEALTHCARE ARIZONA LLC
Eligible for registries and wish lists

About this item

Highlights

  • 【Dual Firmness Options】 Double-layer foam design lets you choose: top side for firm support, bottom side for extra-firm comfort to suit your body.
  • 【Ergonomic 4-Inch Support】 High-density 4-inch memory foam contours to your body, alleviating pressure points and keeping your spine aligned for pain-free sleep.
  • 【Certified Safe & Skin-Friendly】 Made with CertiPUR-US and OEKO-TEX certified materials, free from harmful chemicals and odors for a clean, safe sleep surface.
  • 【Breathable Cooling Design】 Open-cell airflow channels and gel-infused memory foam dissipate heat efficiently, keeping you cool and comfortable all night.
  • 【Secure & Non-Slip Fit】 Non-slip mesh bottom with four adjustable elastic straps keeps the topper in place, even for restless sleepers.

Description

Upgrade your sleep with the Dyonery 4" Extra Firm & Firm Mattress Topper, combining superior support, cooling comfort, and ergonomic design. Made with high-density memory foam infused with gel and bamboo, it relieves pressure points, aligns your spine, and promotes a cooler, more restful night. Safe and skin-friendly with CertiPUR-US and OEKO-TEX certified materials, this topper is easy to set up and stays securely in place with its non-slip base and adjustable straps ¡ª the perfect solution for any mattress.
Dimensions (Overall): 79 inches (L), 75 inches (W), 4 inches thick
Fill Material: 99% Memory Foam
Fabric Name: Mesh
Textile Material: 99% Polyester
Thread Count: 100
Fits Maximum Mattress Depth: 80 inches
Care and Cleaning: Machine Washable Cover, Line Dry or Lay Flat to Dry
TCIN: 1008797831
UPC: 199581105348
Origin: imported
The above item details were provided by the Target Plus™ Partner. Target does not represent or warrant that this information is accurate or complete. On occasion, manufacturers may modify their items and update their labels.
We recommend that you do not rely solely on the information presented. If you have a specific question about this item, you may consult the item's label, contact the manufacturer directly or call Target Guest Services at 1-800-591-3869.
If the item details aren’t accurate or complete, we want to know about it.

Shipping details

Estimated ship dimensions: 29.53 inches length x 14.17 inches width x 14.17 inches height
Estimated ship weight: 22.04 pounds
item ships from third party seller: HEALTHCARE ARIZONA LLC

Return details

This item can be returned to any Target store or Target.com.
This item must be returned within 30 days of the date it was purchased in store, shipped, delivered by a Shipt shopper, or made ready for pickup.
See the return policy for complete information.

Additional product information and recommendations

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4.7 out of 5 stars with 53 reviews
5 out of 5 stars
30 December, 2025
originally posted on acruxl.com

Cool Sleep

Hot sleeper + back pain constant frustration until this topper. keeping me comfortable even in summer, the dual layers cradle my back without feeling too soft.
Hope
Did you find this review helpful?
5 out of 5 stars
26 December, 2025
originally posted on acruxl.com

Comfortable

It really helps with the comfortable level of an old mattress that's in the spare room. It's easy to put on.
Tomo K.
Did you find this review helpful?
5 out of 5 stars
20 December, 2025
originally posted on acruxl.com

Just Right'

When I relocated cross country, sister in law gave me their 3 month old memory foam mattress as they purchased a king size.
Kris T.
Did you find this review helpful?
3 out of 5 stars
15 December, 2025
originally posted on acruxl.com

Decent.

This one has the egg carton shape to it. It works but not the best.
Joeb
Did you find this review helpful?
5 out of 5 stars
10 December, 2025
originally posted on acruxl.com

Best part of my bed. I love it.

I was a bit worried about getting only a 2 inch. Boy was I wrong. Just as good as the 4 inch topper I had before.
Lail
Did you find this review helpful?
5 out of 5 stars
29 November, 2025
originally posted on acruxl.com

Great pad

Sturdy and comfortable. Highly recommended.
Sand
Did you find this review helpful?
5 out of 5 stars
28 November, 2025
originally posted on acruxl.com

Really comfortable!

The mattress pad started to expand as soon as I opened the wrap.
Mcdu
Did you find this review helpful?
5 out of 5 stars
27 November, 2025
originally posted on acruxl.com

LOVE!

Omg I love this. hips hurt just sleeping on my new mattress. But on the first night it felt good.
Jenn
Did you find this review helpful?
5 out of 5 stars
22 November, 2025
originally posted on acruxl.com

Mattress topper

I truly enjoy this mattress topper. not knowing if they would cause issue with my sleep due to slight sensory issues, but they aren't as apparent when laying as I'd thought they may be.
Cahry H.
Did you find this review helpful?
5 out of 5 stars
21 November, 2025
originally posted on acruxl.com

Comfortable and durable

This topper is very comfortable Gives support SOS in a small package and expands quickly. No adverse smell
Carl
Did you find this review helpful?
5 out of 5 stars
15 November, 2025
originally posted on acruxl.com

Gel topper

This gel topper changed how my bed felt GREAT QUALITY! Love it!!
Give
Did you find this review helpful?
1 out of 5 stars
11 November, 2025
originally posted on acruxl.com

Not as thick as expected.

I bought this after having a 70 dollar one. Does not even seem 2 inches thick like they claim. Doesn't feel like memory foam at all.
Christina H.
Did you find this review helpful?
5 out of 5 stars
30 October, 2025
originally posted on acruxl.com

Feels great!

This is what I needed. It fits really well on my queen. Love the thickness
Name T.
Did you find this review helpful?
5 out of 5 stars
28 October, 2025
originally posted on acruxl.com

Sleeping in floating cloud

So I wanted a mattress topper for a while but not something so thick. i have been sleeping on this about a week now and discomfort gone.
Vica A.
Did you find this review helpful?
5 out of 5 stars
15 October, 2025
originally posted on acruxl.com

Plush, Cool, and Stays in Place

Does exactly what it promises. cooling gel is effective, back pain is reduced.
Thri
Did you find this review helpful?
5 out of 5 stars
10 October, 2025
originally posted on acruxl.com

Very soft and comfortable!

Love this!!! and comfortable!
Kari
Did you find this review helpful?
5 out of 5 stars
7 October, 2025
originally posted on acruxl.com

Not bad for the price.

Not bad for the price. I'm still happy with it though. I'll use it until it falls apart.
Chuc
Did you find this review helpful?
5 out of 5 stars
30 September, 2025
originally posted on acruxl.com

The perfect topper for a side sleeper

Give this thing a few hours to stretch out after you open it, it fluffs up to the perfect mattress topper. It is a legit game changer if you're a side sleeper, Excellent value.
Shan
Did you find this review helpful?
5 out of 5 stars
29 September, 2025
originally posted on acruxl.com

Comfortable

Great for my lower back The cooling effect isn't as cool as I thought it'd be but it certainly helps stop the sweat at night. Super easy to put on the bed
Jessica S.
Did you find this review helpful?
5 out of 5 stars
28 September, 2025
originally posted on acruxl.com

Gives an old mattress new life

This overlay is great for giving an old mattress new life. it's very comfortable. Not too soft or hard.
Anth O.
Did you find this review helpful?

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