Search  for anything...

DOWNCOOL 3 Inch King Mattress Topper, Breathable Bamboo Viscose Air Layer

Based on 382 reviews
Condition: New
Checking for the best price...
$77.98
Holiday Deal · 40% off was $129.99

Buy Now, Pay Later


As low as $13.00 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 90-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Nov 14
Order within 4 hours and 42 minutes

Available payment plans shown during checkout

Protect Your Purchase

Easy claims online, fast replacements, no fees

Checking for protection plans...

At a glance

Condition
New
Color
White (3inch)
Size
King
Material
Memory Foam
Age Range Description
Adult
Closure Type
Pull On
Water Resistance Level
Not Water Resistant

Features 5

  • Cooling Bamboo Viscose Top with 3D Air Layer: Made of 39% bamboo viscose and 61% polyester, the bamboo mattress topper surface features a 3D air layer design that enhances breathability, making it a great choice for hot sleepers.
  • Plush Pillow Top for Pressure Relief: Made with a thin gel memory foam layer and a blend of 70% memory foam and 30% 3D polyester fiber, this 3 inch memory foam mattress topper delivers plush comfort with balanced support to help relieve pressure on the back, shoulders, and hips.
  • Secure Deep Pocket Design: The elastic deep pocket skirt wraps around the mattress for a secure 360 fit. It stays in place on mattresses from 821 inches thick and wont move or slide, even if you toss and turn at night.
  • Easy Care & Maintenance: After unpacking, place the product in a well-ventilated area for 2448 hours to allow it to fully expand, regain its original shape and loft, and naturally release any packaging odors. For daily care, spot clean with a damp cloth and mild detergent as needed, then allow it to air dry completely to help maintain its softness and shape.

Specs 18

Brand DOWNCOOL
Color White (3inch)
Size King
Fabric Type 39% Bamboo Viscose Air Layer, 61% Polyester
Special Feature Bamboo, Breathable, Memory Foam, Pillow Top
Brand Name DOWNCOOL
Age Range Description Adult
Model Name DOWNCOOL

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 14

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.

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

Learn more about financing & leasing here.

Top Amazon Reviews


Best Purchase of my Life !!!
Color: White (3inch) Size: King
I never add a review but this time is an exception. This mattress topper is one of the best things I have EVER purchased in my life. It is extremely comfortable, did not MOVE from one spot the first night I slept on it. No tossing and turning, I felt great when I woke up. Finally am getting good sleep and my body is not hurting when I get out of bed. Make the investment in a good mattress topper because quality sleep is so very important !! ... show more
Reviewed in the United States on September 29, 2026 by GW

Complete game changer!
Color: White (3inch) Size: Queen
Biggest with this mattress topper is never wanting to get out of bed! My mattress was just a little too firm. I have aches and pains (fibromyalgia) and sometimes just lying on my side was too painful. I tried other toppers and they didn’t help. This one is perfect! No pain, and I have been sleeping really well. ... show more
Reviewed in the United States on October 9, 2026 by Teri Firth

Mattress topper for the win!
Color: White (3inch) Size: Queen
Love this mattress topper. Only had it on the bed for a few days so far, but sleep quality has definitely improved. So much so that neither of us want to get out of bed. Lol Well worth the price to make a somewhat firm newer mattress feel so much more comfortable without being too soft. Followed directions to leave out for a couple days before putting on the bed. There was no odor when we opened the box. And the quality seems to be great too. Great investment! ... show more
Reviewed in the United States on September 25, 2026 by Mari

Keeps me cool!
Color: White (3inch) Size: Queen
Slept on this for the first time last night. I am amazed to say it was exceptional in that not once did I kick the covers off! My nighttime body temperature remained comfortable and steady all night long!
Reviewed in the United States on September 27, 2026 by Mam353

I like it and recommend
Color: White (3inch) Size: Queen
Exactly what I wanted which makes the description authentic. Since I have had it only a short time, I can not comment on it's durability.
Reviewed in the United States on September 28, 2026 by Raidergrode

Comfy
Color: White (3inch) Size: Queen
I had an old worn out topper on my bed and I knew I needed a new one. Since placing this topper on my bed, I have slept so much better. I am not tossing and turning like I use to do every night. I'm so glad it worked out.
Reviewed in the United States on October 7, 2026 by Pam

I slept better in Afghanistan than on this thing
Color: White (3inch) Size: King
I wasn’t able to repurchase my previous mattress topper - so I settled for this one. I had to go away for the weekend, so I figured I’d let the topper breathe for 3 days and it would be set by the time I returned from my trip. This is the lumpiest topper in the history of mattress toppers. I tried to fluff it as best as I could, and after sleeping on it for 2 weeks I can’t take it anymore. I can’t sleep more than 4 hrs on this thing and my body is killing me. Not sure how I can even return this thing but please do not waste your money. ... show more
Reviewed in the United States on September 29, 2026 by Sylvia

Mattress Pad like a Cloud!
Color: White (3inch) Size: Queen
This is like sleeping on a cloud!!! Great fit on my mattress. I love it and I'm sleeping so well!
Reviewed in the United States on September 27, 2026 by Cyndi R
Checking for best price...