SINWEEK 3 Inch Gel Memory Foam Mattress Topper Twin XL Size for College Dorm, Ventilated High Density Pad for Back Pain, Bed Topper with Removable Soft Cover, CertiPUR-US Certified
Condition: New
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Availability:
In Stock.
Arrives
Tuesday, Sep 8
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Size: Twin XL
Style: 3 Inch(White Cover)
Features
- Gel Memory Foam Material: Our memory foam mattress topper readily conforms to the curves and shape of your body, distributes weight evenly to alleviate pressure points for better sleep.
- Increase Softness and Comfort: The mattress topper not only protects your mattress and other bedding, but also extends the life of the product itself due to its high-density topper and soft cover.
- Non-slip & Machine Washable cover: Use skin-friendly and breathable Polyester fiber, with elastic straps and anti-slip surface backing to prevent sliding and premium metal zipper for easy removal and washing.
- Certification: Our Gel memory foam topper is made of CertiPUR-US certified materials and soft cover is certificated OEKO-TEX. The memory foam topper meets or exceeds standards for content, emissions, and durability.
- Note: 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.
- Important: This product is intended to be used on top of an existing mattress and is not designed for standalone use.
Description
Medium Soft Foam Topper 2-Sided Foam Topper Medium Version Topper Mattress Topper and Pad Ventilated Foam Topper Egg Crate Foam Topper 5-Zone Foam Topper
Brand: SINWEEK
Color: White
Size: Twin XL
Fabric Type: Polyester Fiber
Special Feature: Durability,Premium,Removable
Brand Name: SINWEEK
Age Range Description: 13+ years
Model Name: 3 Inch Gel Memory Foam Mattress Topper
Number of Items: 1
Manufacturer: SINWEEK
Unit Count: 1 Count
Number of Packs: 1
Other Special Features of the Product: Durability,Premium,Removable
Closure Type: Zipper
Water Resistance Level: Not Water Resistant
Fabric Type: Polyester Fiber
Product Care Instructions: Machine Wash
Material Type: Polyester
Size: Twin XL
Color: White
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Sep 8
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: Twin XL
Style: 2 Inch(White Cover)
I have very typical degenerative disc problems and often will get bulging (or worse) disc issues. For about a year it can cause a pinched nerve feeling down my right hip. For reference, I am 68 nearing 69, 5’2” and weight about 115. I am a side sleeper and put a special pillow between my legs. We recently bought a great adjustable bed with a local factory—custom made coil firm pillow top mattresses. Split king. I love the bed and mattress. I wanted more softnesses on top because of this back problem so I tried a few tops in addition which helped a bit but not as much as this one. I bought the 2” topper. I can’t go too soft. That makes matters worse if I am having real pain. I have to say this is just perfect. It doesn’t sink to nothing when I lie down on it. It is a bit firm yet conforms to me and really helps when my back and that hip is particularly tender. Just soft enough and yet firm enough. Of course this is a completely subjective review-but I will give you a sense of it if I can. When I have ruptured discs, the pain is off the charts. I had childbirth in Army hospitals, they gave you nothing but Tylenol—I’d take childbirth over this pain (at its worst) any day. I rarely get to that level thank heavens, but I can aggravate it and sometimes even touching my hip (the pain will shoot down my hip)—it’s a dull throbbing—can make me lose sleep. I can’t take NSAIDS - the only thing I am supposed to take is Extra Strength Tylenol. I will sneak an Extra Strength Excedrin but due to stomach issues am not advised to by my doctor. Resting, lying down and keeping my spine aligned usually helps towards healing. This topper helps me get comfortable for example -when I did too much unloading our RV after a recent trip. Just a lovely almost floating feeling. The other thing is—no odor when I opened it. I have been doing memory foam since before anyone knew what it was. I don’t even mind the off-gassing. The fact is, there wasn’t any with my topper. I opened it in the spare bedroom and it went from flat as paper to it’s full two inches in a few hours and I couldn’t smell anything even though I left it in that room for over 48 hours. I am very, very happy with my purchase. Happy with the cover, density of the foam and quite surprised by no smells. Great price too!
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Reviewed in the United States on April 24, 2026 by CJV
Size: Twin
Style: 2 Inch(White Cover)
I've seen reviews that this thing won't expand to it's intended 2 inches, or at all for that matter. I witnessed that as well. But I really didn't want to return this item. So I dinked with it. You gotta stretch it a bit- GENTLY- bc it will rip between the holes on the surface. Not it's fault, I was over zealous :P It's really separating itself from itsself so it can let in the air. It's a bit like moon sand when it's that compressed. After it takes it's air, it doesn't stick to itself anymore. I had mine in sleeping order within an hour and it. is. so. COMFY! I don't even like memory foam because when it first came out years ago, it would hold the shape of my body indent. This does NOT do that! I have a bad back and huge bo@bs, so I can't sleep on my back, or my tummy, but when I laid down on my bed with this topper before bedtime, to check how it felt, just on my back... I was so comfortable I feel asleep right away! The lights were still on and everything 🤣. I only woke up because my daughter was like, "mom, what are you doing?!" I didn't put her to bed yet lol. I just wanted to try the topper after I made the bed. And I don't like the idea of a 'cooling' topper, but it's not what I thought..... I always wake up sweaty, always. And today, I didn't!!!! My bed was warm and snuggly comfy right when I got in and throughout the night but I didn't sweat like I usually do!!! AMAZING!!! And I usually wake up several times through the night, but I don't remember waking up once!!! I just realized that!! I am excited to go to the bed now... How awesome. Don't give up on it right away. This'd is an excellent deal! No weird smells either! Usually there's some kind of chemical smell with these kind of things, not this one. I didn't smell anything at all. You can stretch it but standing on one end and pulling gently on the other end. Just enough to separate itself from itself inside (I took the cover off). The corners need you to use your fingertips and pull the back away from the front, kinda thing. Gently and slowly. You can even hear it letting go of itself, then watch as it does that moonsand thing... You can see it expand right then. Looks cool. I didn't measure mine, just let it litter there a few minutes after releasing all the wrinkles and creases. Comfy!!! My daughter wanted me to order another one just for her to play on in the living room :p I actually rolled across it to avoid crawling when I was putting the cover back on (the zipper is missing the dangly part on all of them I think, on purpose. Just grab it with two fingers on front and back to zip/unzip) and also to make my daughter laugh) My big body did not hurt a bit doing those rolls. I anticipated my spine grinding on the floor underneath the topper since I'd just finished releasing the wrinkles, and I'd only had the thing in possession for an hour (I opened it immediately to give it the anticipated time of 48 hours to expand). After a half hour I checked on it, and it hadn't changed a bit. That's when I decided to dink with it. I recorded some video but don't know if I'll use it since I was huffing and puffing because I'm a fat 🤣. Jk. But I am 😁 I just realized!!! I didn't struggle to get out of bed either!!! I usually wake up wracked with pain!! (Bad back/prev surgeries and procedures). I'll have to pay attention better tomorrow, because that's A HUGE deal!! I'll update if I remember... Wow. So cool!
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Reviewed in the United States on February 28, 2024 by Apey252
Size: Twin
Style: 3 Inch(Grey Cover)
I am absolutely in awe of this, & I rarely leave reviews unless something is absolutely horrible and I’m trying to warn people, or something is fantastic and I want to help people- that’s it. The fluffiness and comfort level for this is out of this world! My 9 year old autistic son LOVES it, and he’s so picky when it comes to textures and things like that. The value for money is beyond words. The feeling of cooling is just right. It’s so soft, and the appearance looks so aesthetically pleasing (even though it goes under a sheet). I highly recommend this thing. We’re buying another for our queen size bed next. It seems like it’s going to be durable. If anything changes, I’ll update my review, but so far so GREAT.
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Reviewed in the United States on July 23, 2026 by OCD Momma Bear
Size: Full
Style: 3 Inch(White Cover)
I bought this to put in my grandsons play yard because I was concerned about him possibly hitting his head on the floor during tummy time. This worked like a charm! He loves it and my daughter has peace knowing that he won’t hurt himself. It is very soft. Not too soft though and not too firm. I bout a full size so that it would fit. Now he did manager to pull a thread which was concerning so that’s why I gave it a four.
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Reviewed in the United States on April 11, 2026 by shoknuff
Size: Queen
Style: 3 Inch(White Cover)
I purchased the 3” mattress topper and I was pleasantly surprised after one night. I am caregiving for my father and found the bed I sleep in very uncomfortable and would toss and turn all night due to my hips aching. The first night with this mattress topper made a huge difference! I slept all through the night and didn’t wake up with sore hips. The mattress topper seems to be made of high quality material and the firmness and thickness of it is perfect (I am used to sleeping on a tempurpedic). I am a warm sleeper and did not get hot. But it is still winter. I did not notice any bad odors when unpacking it or sleeping on it. I would definitely recommend this topper if you are not looking for a soft squishy bed.
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Reviewed in the United States on February 21, 2026 by AmyAZ
Size: Full
Style: 3 Inch(White Cover)
This is genuinely such a fantastic mattress topper!! It's SO comfortable & it really doesn't move much while you sleep since it has the mattress straps. For the price & quality, I HIGHLY recommend!!
Reviewed in the United States on August 20, 2026 by Simone
Size: Queen
Style: 3 Inch(White Cover)
I like this mattress topper but it definitely took a couple months for it to actually feel nice on my back. I felt like I was sinking in the bed too quickly
Reviewed in the United States on June 29, 2026 by Lornacelia Lewis
Size: Full
Style: 3 Inch(White Cover)
I bought this mattress topper hoping it would help with my back pain, and I’m so glad I did. It adds just the right amount of cushioning without feeling too soft, making my bed much more comfortable. I wake up feeling more supported and rested, and it has definitely made sleeping more enjoyable. It was easy to put on, stays in place, and feels like a great value for the price.
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Reviewed in the United States on August 7, 2026 by Danilo Lira