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subrtex 3 Inch Gel-Infused Memory Foam Bed Mattress Topper High Density Cooling Pad Removable Fitted Bamboo Cover Ventilated Design-10 Years Warranty (California King)

  • Based on 190 reviews
Condition: New
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This item is eligible for return within 30 days of receipt

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Availability: Only 4 left in stock, order soon!
Fulfilled by Amazon

Arrives Tuesday, Sep 9
Order within 44 minutes
Available payment plans shown during checkout

Size: California King


Style: 3Inch


Features

  • Bamboo Rayon Cover
  • Inner memory foam: Subrtex 3" gel-infused memory foam mattress topper uses 3.5 pound density memory foam, mattress topper with ventilated design optimizes air flow and reduce trapped body heat, creating a cooler and more comfortable sleeping environment.
  • Removable & washable cover: The bamboo rayon cover adopts skin-friendly knitted fabric, comes with adjustable elastic straps which fit mattress depth up to 12", equips with mesh fabric backing to prevent sliding and premium metal zipper for easy removal and washing.
  • Healthier sleep environment: Our memory foam mattress topper is certified by CertiPUR-US and OEKO-TEX for durability, performance and content. No formaldehyde, No harmful phthalates.
  • Advanced shipping: Before first use, leave the memory foam flatly in a well ventilated area for 48-72 hours until it's fully expanded.Tips: Low temperature may need more time, find a suitable temperature(78F) will shorten the time.
  • Ten-year: We are confident with our mattress topper and we will provide peace of mind for your purchase. Buy with Confidence. If you have any issues within 10 years of your purchase, Contact us and we will find make it right.

Brand: Subrtex


Color: 3 Inch


Size: King


Fabric Type: Bamboo Rayon Cover


Special Feature: Cooling, Adjustable, Washable


Brand: Subrtex


Color: 3 Inch


Size: King


Fabric Type: Bamboo Rayon Cover


Special Feature: Cooling, Adjustable, Washable


Closure Type: Zipper


Water Resistance Level: Not Water Resistant


Material: Gel Memory Foam


Product Dimensions: 84 x 72 x 3 inches


Item Weight: 31 pounds


Manufacturer: Subrtex


Country of Origin: China


Item model number: MT05


Assembly required: No


Batteries required: No


Included Components: Gel-Infused Memory Foam


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 9

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.

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Top Amazon Reviews


  • Connecting elastic straps
This is a very good mattress, with just one problem. The elastic straps connecting the topper to the mattress, is much too small and definitely too weak to hold the topper in position. I have an adjustable bed, and I sleep with my head elevated due to a back problem and also due to sleep apnea. The band on one corner broke the very first night, and the other band at the other top corner, slipped off. The reason is the elastic bands are not broad or strong enough, and also too close to the corners to fit deep enough under the mattress corners to hold it in position. For the price, I expected a better quality of these items. ... show more
Reviewed in the United States on March 29, 2021 by Herman Bezuidenhout

  • Cooling
I can't see that it is any cooler than the mattress on the bed.
Reviewed in the United States on August 17, 2021 by Eloise Katterhenry

  • might be a tad softer than we need but still provides a nice sleep
thinking if it was just a tad firmer it wouldn't feel so denting in but that might just be the fact that we are larger proportions. for smaller folks it might be a little firm. it does act as a decent cooling pad which for the hot desert we are in is a very necessary feature. overall a very good way to renew an older mattress, extend its life and put off spending hundreds for a new bed. ... show more
Reviewed in the United States on June 17, 2021 by tingub

  • Never fluffed up
Do not buy. I let sit for 4 days and it never changed shape from when i first unrolled. The item is defective.
Reviewed in the United States on July 22, 2023 by T. Mink

  • Using on a low platform bed - SO comfy!
Because of back issues (which has led to hip and leg pain) sleeping on the floor seemed like where I'd be for the rest of my life. On a whim, I ordered this and stuck it on our new low platform bed (bed frame + plywood sheet) and voila! Instant comfort. Not too soft and definitely not too hard. This was just what we needed for a comfortable night's sleep. Hubby happily sleeps on it without any complaints. Obviously this is not going to have the plush comfort level of a full memory foam mattress but if you have back/hip/leg pain, give it a try! Super comfy. ... show more
Reviewed in the United States on August 14, 2021 by Cherie

  • I love it!
I have to say it is wonderful! I don't want to get out of bed in the morning. My back feel much better with it. It is very soft!
Reviewed in the United States on December 21, 2022 by Peggy Peggy

  • has 2 long "memory lumps" from its packaging configuration
The topper may work if they fold it correctly, but in the case of the one I got, it will never be right. A person with little intelligence came up with it packaging configuration where it has 2 sharp folds along the length of the topper then is rolled into a bag then a box. The topper will not let the 2 folds flatten out, it remembers them very well. I have tried all suggestions for flattening the folds and they are still there. The topper is less comfortable to sleep on than sleeping on the floor, so its pretty bad. ... show more
Reviewed in the United States on July 21, 2023 by lon

  • Excellent Comfort, Quality, and Support
My husband and I absolutely loved our subrtex mattress topper since the very first night. It’s dense gel-infused memory foam uniquely adapts to your body weight, shape, and sleeping position relieving a great deal of body pressure while providing exceptional support. My husband’s severity of Back pain and sciatica has improved considerably, and I finally feel fresh and rested in the morning. The ventilated design is so beneficial specially here in Texas, making you feel even more comfortable and your mattress more durable. I also love the washable cover which is by the way hypoallergenic, and free of hazardous chemicals. ... show more
Reviewed in the United States on November 25, 2020 by Farid Rezaei Farid Rezaei

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