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ViscoSoft
viscosoft.com › collections › mattress toppers - 4" thickness
Shop 4 Inch Mattress Toppers | Extra Thick & Supportive
The 4-inch memory foam mattress topper transforms your mattress with superior support, stability, and added features for pain relief, cool sleep, and plush comfort—all with a washable cover for easy care.
Discussions

Where to buy a 4 lb memory foam topper.
You’ll need a Twin XL for a split king. I have this topper from Foam Factory, 3 inches of 4lb, and it is absolute heaven for me as a lighter weight side sleeper, with a bad hip. In fact, my hip pain is 90% better after buying this topper! I have only had it for 4 months, so I can’t speak to longevity, but I am very pleased to have it. No off-gassing whatsoever, which was a huge bonus. More on reddit.com
🌐 r/Mattress
21
3
June 1, 2022
if you want a good sleep 4" twin memory foam mattress topper

Even a lousy memory foam topper will do wonders for your sleeping. However in the winter it will harden up as the temps drop. You’ll roll from one side to the other in the middle of the night and feel the imprint you made in the foam. Still worth it

More on reddit.com
🌐 r/Truckers
9
16
March 27, 2021
2, 3, or 4 inch mattress topper?
don't listen to these people saying to not get a mattress topper😭 unless you want to sleep on a brick get one. i had a 3 inch mattress topper and i recommend getting that More on reddit.com
🌐 r/ucla
14
2
March 27, 2025
3 inch vs 4 inch mattress topper?
Density really does matter in a mattress topper. I have many, many different toppers of different densities and my favorite, by far, is the 4lb topper from Foam Factory. They can send you sample cubes ofwhatever you like and at least you can feel the difference in “squishiness” between them. The 4lb has some heft to it and feels much more supportive than the 2.5lb and something like Serene foam. I also had a Viscosoft topper, and that, at 3.5lb density was way, way too firm for me, but I weigh 132 and am a side sleeper. It was an excellent quality topper, and I can see it working for a lot of people. More on reddit.com
🌐 r/Mattress
14
11
April 7, 2023
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Lucid
lucidmattress.com › home › 4 inch gel memory foam mattress topper
4 Inch Gel Memory Foam Mattress Topper
4 Inch Gel Memory Foam Mattress Topper
Our thickest memory foam mattress topper, this 4-inch topper is made of plush, gel-infused memory foam for ultimate comfort. Soft, supportive foam cradles the body to alleviate pressure points, with advance gel material that regulates temperature and a ventilated design that improves breathability.
Price   $119.99
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Walmart
walmart.com › home › bedding › mattress toppers & pads › 4 inch memory foam mattress toppers
4 Inch Memory Foam Mattress Toppers in Mattress Toppers & Pads - Walmart.com
Options from $45.99Alvantor 4 Inch Cooling Gel Memory Foam Mattress Topper, Double-layer 2-inch gel memory foam & 2 inch Cool Pillow Top for Back Pain Relief ... Options from $35.99EGOHOME 4 inch Twin Memory Foam Mattress Topper,Egg Crate Foam ...
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Target
target.com › s › twin+mattress+topper
Twin Mattress Topper | 4-inch Memory Foam & Cooling ...
Shop Target for twin mattress topper you will love at great low prices. Choose from Same Day Delivery, Drive Up or Order Pickup plus free shipping on orders $35+.
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The Home Depot
homedepot.com › p › Lucid-Comfort-Collection-4-Inch-Gel-and-Aloe-Infused-Memory-Foam-Topper-Twin-HDLU40TT30GT › 304779990
Lucid Comfort Collection 4 Inch Gel and Aloe Infused Memory Foam Topper - Twin HDLU40TT30GT - The Home Depot
Lucid Comfort Collection 4 Inch Gel and Aloe Infused Memory Foam Topper - Twin HDLU40TT30GT
If you've been trying to sleep on a too-firm or uncomfortable mattress, it's time to add a plush and supportive 4 inch gel memory foam mattress topper. The Lucid Comfort Collection Gel Mattress Topper infused with Aloe Vera is the perfect choice. Memory foam is well known for its contouring comfort and the cooling gel infusions help to dissipate body heat while the aloe vera keeps your sleep space fresh. Plus, this Twin gel memory foam mattress topper is CertiPUR-US certified to keep you safe from harmful chemicals.
(4.1)
Price   $85.00
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Tempur-Pedic
tempurpedic.com › other-products › tempur-toppers
TEMPUR-Toppers | Tempur-Pedic
TEMPUR-Adapt® Topper - CA King
Instantly upgrade any mattress with 3" of extra-soft TEMPUR-Material™ with adaptive pressure relieving technology.
(4.4)
Price   $399.00
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Linenspa
linenspa.com › gel-swirl-memory-foam-mattress-topper
Gel Swirl Memory Foam Mattress Topper
Available in a plush two-inch profile, ... x 74" x 3" Full XL: 52.5" x 79" x 3" King: 75" x 79" x 3" Queen: 59" x 79" x 3" Twin: 37.5" x 74" ......
Find elsewhere
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The Home Depot
homedepot.com › p › StyleWell-4-in-Gel-Infused-Memory-Foam-Twin-Mattress-Topper-THD-MFVT-4T › 311639753
StyleWell 4 in. Gel Infused Memory Foam Twin Mattress Topper THD-MFVT-4T - The Home Depot
StyleWell 4 in. Gel Infused Memory Foam Twin Mattress Topper THD-MFVT-4T
Get a good night's rest with this StyleWell 4-in. memory foam topper. To produce maximum airflow, it offers a ventilated design. It conforms to your body for pressure point relief and individualized support. The 4-in. thick gel-infused memory foam creates more comfort while you sleep.
(4.0)
Price   $70.00
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Sleep Foundation
sleepfoundation.org › home › best mattress toppers
Best Mattress Toppers of 2025: Top 14 Expert-Reviewed Picks
What It’s Like to Sleep On: If cloud-like plush is your idea of comfort, this topper delivers. It’s nearly 4 inches thick–a generous amount of cushioning–yet its micro coils allow plenty of airflow, keeping it from locking in heat. The adaptive polyfoam conforms to your body, but with a looser, lighter feel than memory foam. TheHelix’s GlacioTex isn’t cheap, but you get your money’s worth in a luxurious feel. ... If your mattress is on its last leg but you aren’t ready to replace it, you should consider a thick topper for the indentations and impressions that make your sleep surface feel uneven.
Published   December 3, 2025
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Bed Bath & Beyond
bedbathandbeyond.com › bedding › mattress pads and toppers › mattress toppers
Twin XL Size 4 Inch, Memory Foam Mattress Toppers - Bed Bath & Beyond
Twin XL Size 4 Inch, Memory Foam Mattress Toppers : Free Shipping on Orders Over $49.99* at Bed Bath & Beyond - Your Online Bedding Store! Get 5% in rewards with Welcome Rewards!
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eBay
ebay.com › home & garden › bedding › mattress pads & toppers
Twin Mattress Topper 4in | eBay
Lucid Comfort 4 in. Twin Lavender & Gel Memory Foam Covered Mattress Topper OBOpens in a new window or tab ... Gel Memory Foam Mattress Topper BedStory 4 inch Futon Full Queen King Size PadsOpens in a new window or tab
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Cordouan-tech
cordouan-tech.com › Hokway-4-Inch-Memory-Foam-Mattress-Topper-Twin-Size-Gel-342271
Memory Foam Mattress Topper Hokway 4 Inch - Twin Size ...
VASCO KIN: Revolutionary time-resolved dynamic light scattering for in-situ particle analysis. High temperature, concentrated samples, flow-based measurements.
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ViscoSoft
viscosoft.com › size twin xl
Twin XL Mattress Toppers | The Ultimate College Dorm Upgrade
Mattress Topper Twin Mattress Topper Twin XL Mattress Topper Full Mattress Topper Full XL Mattress Topper Queen Short Mattress Topper Queen Mattress Topper King Short Mattress Topper King Mattress Topper Cal King 2 inch Mattress Toppers 3 inch Mattress Toppers 4 inch Mattress Toppers
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Wayfair
wayfair.com › bed-bath › sb2 › twin-xl-mattress-pads-toppers-c414923-a1925~3900-a145303~468997.html
4"+ Thick Twin XL Mattress Pads & Toppers
Shop Wayfair for A Zillion Things Home across all styles and budgets. 5,000 brands of furniture, lighting, cookware, and more. Free Shipping on most items.
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NYTimes
nytimes.com › sleep › mattresses › the best mattress toppers
The 4 Best Mattress Toppers of 2026 | Reviews by Wirecutter
October 6, 2025 - If you’re a side-sleeper with a bigger body who wants a pillow-y feel, consider the Casaluna Feather & Down Mattress Topper, which has more stability. Sizes: twin, full, king, queen Thickness: 4 inches Materials: polyester fill; 200-thread-count cotton cover Warranty and returns: 30-day return policy
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Sleep Number
sleepnumber.com › home › bedding
Mattress Toppers & Pads | Sleep Number | Sleep Number
Sleep Number mattress toppers and pads add pressure-relieving, temperature-balancing comfort to any bed. Choose from premium layers that enhance support and elevate sleep quality.
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Amazon
amazon.com › Best-Sellers-Mattresses-Toppers › zgbs › home-garden › 8521807011
Amazon Best Sellers: Best Mattresses Toppers
Topllen Twin XL Mattress Topper for Back Pain Relief, Extra Thick Pillow Top Plush Mattress Pad with Deep Pocket, Soft Pillowtop TwinXL Size Bed Toppers Filled Fluffy, College Dorm, White ... 3 Inch Gel Memory Foam Mattress Topper Queen Size High Density Cooling Pad Pressure Relief Bed Topper (with Removable & Washable Bamboo Cover) ... MASVIS Queen Size Dual Layer 4 Inch Memory Foam Mattress Topper, 2 Inch Gel Memory Foam and 2 Inch Cooling Pillow Top Mattress Pad Cover for Back Pain, Medium Support
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The Home Depot
homedepot.com › p › StyleWell-4-in-Gel-Infused-Memory-Foam-Twin-XL-Mattress-Topper-THD-MFVT-4TXL › 311639752
StyleWell 4 in. Gel Infused Memory Foam Twin XL Mattress Topper THD-MFVT-4TXL - The Home Depot
StyleWell 4 in. Gel Infused Memory Foam Twin XL Mattress Topper THD-MFVT-4TXL
Get a good night's rest with this StyleWell 4-in. memory foam topper. To produce maximum airflow, it offers a ventilated design. It conforms to your body for pressure point relief and individualized support. The 4-in. thick gel-infused memory foam creates more comfort while you sleep.
(4.0)
Price   $170.00