Search  for anything...

subrtex 4 Inch Memory Foam Mattress Topper Ventilated Gel Infused Bed Foam Topper , CertiPUR-US Certified, Twin XL, Blue

  • Based on 8,550 reviews
Condition: New
Checking for the best price...
$219.99 Why this price?

Buy Now, Pay Later


As low as $36.67 / mo
  • – 6-month term
  • – No impact on credit
  • – 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, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. 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

This item is eligible for return within 30 days of receipt

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: Only 4 left in stock, order soon!
Fulfilled by R&M Enterprises unlimited

Arrives Sep 10 – Sep 18
Order within 2 hours and 29 minutes
Available payment plans shown during checkout

Size: Twin XL


Style: 4Inch


Features

  • Gel-infused Memory Foam
  • Memory foam mattress topper is an effective solution to help you fall asleep easily and stay asleep throughout the night. The memory topper conforms to body perfectly, adapt to different sleeping positions. To wake up feeling fresh and energetic every day.
  • Gel infused material is designed with perforations and it helps with the air flow, creating a cooler and more comfortable sleeping environment. Designed with 3.5 pound density memory foam to ensure the longevity of our mattress toppers.
  • Our foam topper helps extend the useful life of your old mattress and saves you from buying an expensive new mattress. Just buy one of ours and you can instantly experience luxurious sleep at a fraction of the cost.
  • Before first use, leave the memory foam flatly in a well ventilated area for 48-72 hours until its fully expanded. Tips: Low temperature may need more time, find a suitable temperature(78F) will shorten the time.
  • All Subrtex toppers are backed by our 10 year warranty and lifetime customer service. We are committed to helping you improve your sleep quality and we guarantee to take care of you if you need any help after your purchase.

Product Dimensions: 80 x 39 x 4 inches


Item Weight: 16.72 pounds


Manufacturer: Subrtex Houseware INC


Item model number: L40TX


Fabric Type: Gel-infused Memory Foam


Fill material Type: Memory Foam


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: Sep 10 – Sep 18

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
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Firm and gets it done at a decent price
Size: Queen Style: 4Inch
This is our 2nd round with density foam bed toppers and I just can't imagine not having one. Previous topper wasn't bad sleep wise but was poorly made and didn't last. This one we have had a bit and it's excellent for the money. Wife is 110lbs and I'm 310lbs. We both equally enjoy it. If you are a back or side sleeper give it a shot. ... show more
Reviewed in the United States on February 1, 2020 by Sally

  • Best sleep we’ve had in a long time
Size: King Style: 2Inch
There is nothing we don’t like about this mattress topper. I was unsure if the 2 inch would provide support, but it exceeded our every expectation. It is the perfect combo of firmness and softness with just the right amount of support. The holes in the memory foam provide excellent ventilation. My husband and I are hot sleepers and not once have we complained about being hot since using this topper. We’ve also experienced much less back pain when waking up in the morning. It’s far exceeded our expectation. I can’t recommend this enough. ... show more
Reviewed in the United States on May 1, 2020 by Christina

  • I love it
Size: Queen Style: 2Inch
My honest opinion: Original review: 06/02/20 I’ve had mine for about two weeks now and it has helped so much my mattress was relatively new but super uncomfortable I’ve had my mattress for almost two months and it was so hard that it started bruising my hips since I’m a side sleeper from the pressure and it also sleep incredibly hot and I’ve tried mattress pads and protectors and nothing softened it up enough and my back was in so much pain I could barely turn around it inflated pretty quickly it fully inflated within an hour but I left it for a day just to fully inflate I thoroughly checked the topper before placing it on my bed for any stains or bugs and I saw none it has helped my back and hips tremendously and the holes also seem to keep it cool if your a cold sleeper like me this won’t completely cool you down but there will definitely be a change I do wish it was available in a 4 inch instead of two but I will be purchasing another just to give add a bit more foam it is slightly bigger that your mattress and may move around but once I put my mattress protector and sheets on it stopped definitely recommend if you want some soft yet supportive I will be updating my review in about 2 months ... show more
Reviewed in the United States on June 2, 2020 by :)

  • Wish this was a 5 star product BUT IT IS NOT!
Size: King Style: 3Inch
I got the 3 inch version for over 2 months now. This topper feels AMAZING when you initially lay on it. Its soft but supportive and hugs your body just right. The problem is when you lay on it and it starts heating up with your body temperature it loses its supportiveness. It softens up too much and you start sinking in it. The areas around your body which is cooler and firmer makes it harder to get out of the sunken spot you're sleeping in. If the firmness stayed the same the whole time you are in bed this would be absolutely a 5 star mattress topper but unfortunately I wake up with my lower back aching from sleeping in a "U" position. Unfortunately the return window is closed and I'm stuck with it. Don't let the good reviews fool you. ... show more
Reviewed in the United States on February 25, 2021 by Kristin M.

  • Arrived dirty! And topper is soft not firm.
Size: Twin XL Style: 2Inch
Nope! Arrived damaged, dirty and stained, even inside its air tight vacuum sealed bag. I’m now tasked with repackaging an expanded memory foam for return....” square peg in a round hole” scenario. (Give it a quick once over before cutting it open!) I ordered this based on some of the reviews stating it’s more on the firmer side (for back support which is what I was after). It isn’t firm at all. But if you’re looking for an overall, “typical” topper/cloud-like feel to lessen the pain of a firm mattress you’d probably be satisfied with this one; if you’re lucky enough to receive the topper pristine clean and not damaged. ... show more
Reviewed in the United States on November 6, 2020 by Ang

  • Easy to assemble and inflate to normal shape quickly
Size: Queen Style: 3Inch
My old mattress has gotten quite loose and out of shape so I think this memory foam topper would be a decent upgrade. The memory foam itself is quite thick at 3 inch and actually inflate itself back in less than a day (the instructions said 24 hours). So far sleeping on it has been great and I already see an improvement in my sleep. The only downside is that the size is actually bigger than Queen a bit, while it's OK with me might be a concern for others. Overall, I'd definitely recommend getting this memory foam topper to upgrade your sleep. ... show more
Reviewed in the United States on February 4, 2020 by Huang's Family

  • NOT memory foam
Size: Full Style: 4Inch
The media could not be loaded. Expensive regular foam. I contacted Amazon through chat and got a pick up for the return.
Reviewed in the United States on March 3, 2020 by Tina T

  • Just what I needed. I baught the 3 inch topper for queen bed.
Size: Queen Style: 3Inch
This is just as I expected & needed. I would give 5 stars but it is a little larger than my queen mattress so it over hangs by a couple inches. I might have to cut it down to size if it slips around at all. Other than that so far I am happy with this topper. Update, This has made me so happy. I am sleeping through the night with no hip pain. I want one for every bed in the house now. ... show more
Reviewed in the United States on March 3, 2020 by TBrewer

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...