4" Mattress Toppers
Memory Foam Mattress Toppers - 4 inch
Viscosoft offers multiple thickness options to customize your comfort. 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.
Free shipping, easy returns & a 90-day guarantee.
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Maximum Stability and Edge Support
![Maximum Stability and Edge Support]()
![Maximum Stability and Edge Support]()
The additional foam in a 4-inch topper reinforces the entire mattress surface, preventing any sagging, instability or craters introduced by the mattress below. Reinforced edges ensure consistent support no matter where you sleep and ease entry/exit.
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Ideal for Larger Frames
![Ideal for Larger Frames]()
![Ideal for Larger Frames]()
Heavier sleepers with larger body types will benefit from the added depth of the 4-inch topper, as it offers more substantial support to prevent sinking and promote proper alignment throughout the night.
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That "Hotel-Like" Feel at Home
![That]()
![That]()
The premium depth of the 4-inch topper adds a level of luxury that mimics the feel of high-end hotel mattresses. Our 4 inch toppers can turn your bed into an indulgent retreat of plush, cloud-like comfort or deliver the superior contouring of a custom mattress, both typically reserved for five-star stays.
reviews from customers like you
see what people are saying
My 2nd topper
I loved my first topper (3 inch) so after a couple of years I decided to go with the 4 inch. Love it as much as my first one. Would recommend it to anyone.
Very good quality - I’m impressed!
I absolutely love the topper. It is the best quality I have ever had. The cover is very high quality as well, and the straps are very sturdy and keep the mattress in place. My husband is a big guy and has back problems so he doesn’t like it as well as I do unfortunately, but it feels amazing to me and I highly recommend it. It is definitely true tRead more about review stating Very good quality - I’m impressed!o size; 4”.
Great Topper - Best one we had in 30 years
This is a great topper - only wished we would have gotten the 4" inch versus the 3". We are extremely happy with the topper and is literally the best topper we have purchased in 30 years. Great that it comes with a cover. It's extremely soft and comfortable while provRead more about review stating Great Topper - Best one we had in 30 yearsiding proper support.
For the first time I woke up in the position I fell asleep in! High Density 4" Get one.
My select 4-inch high density Mattess topper, from Viscosoft is the best available. I woke up in the exact position I fell asleep in. I suspect with a solid mattress of any type, the expensive bed market will be done in by this quality product. I told my chiropracter. Really profoudn product. Well done! DonRead more about review stating For the first time I woke up in the position I fell asleep in! High Density 4"! Get one.'t even bother with anything else, really.
Dorm room topper
Bought the 4-inch topper for my daughter’s dorm room. Shipping was fast. Didn’t open it until we put it on the bed but it was perfect out of the box. My daughter says the bed is unbelievable with the topper on it. And she’s picky about her bed comfort. I’m hoping to get 4 years out of it but even if we don’t, it seems Read more about review stating Dorm room topperto be worth it’s price already.
Very comfortable.
I replaced my old foam topper with this 4 inch Viscosoft topper in hopes it would help my back and shoulder pain when sleeping. It is more supportive than the old topper, but allows you to still sink in enough to cushion the joints. It is very comfortable and I can lay on my sRead more about review stating Very comfortable.ides without shoulder pain for the first time in years. This was a great purchase.
Pressure relief
My mattress is a little bit past what should probably be the end of it's life and I was having trouble sleeping and experiencing a fair bit of shoulder and hip pain. After a little research, I found Vicosoft was recommended for pressure point relief and decided to go for it. I got the 4 Read more about review stating Pressure reliefinch because, again, my mattress is pretty terrible and this topper has been great! I'm not particularly used to memory foam, but it cradles my hips and shoulders. While my shoulder pain isn't completely gone, it's greatly reduced and the hip pain is no more. I sleep pretty hot and was a bit worried I'd overheat with this topper. I wouldn't say it's cooling, but the topper hasn't added any extra warmth either. Overall it's a fantastic buy, arrived very quickly, and was easy to unroll. I'm very satisfied with my purchase.
Best sleep in years!!
I have osteoarthritis in my back, since we have gotten this, 2 weeks ago,I have slept so much better! I’m now able to get out of bed feeling rested, with little to no discomfort in my back! I would recommend this topper 100% we have the 4” and so far LOVE it!!
Our 4" (Four Inch) Memory Foam Mattress Toppers
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Select High Density
![Best for Extra Support. NYT Wirecutter's 2024 pick for Best Memory Foam Mattress Topper.]()
![Best for Extra Support. NYT Wirecutter's 2024 pick for Best Memory Foam Mattress Topper.]()
Viscosoft's best-selling Select High Density mattress topper combines four inches of premium, 3+ lbs. density memory foam with a washable, cooling cover designed for a perfect fit. The 4-inch topper provides a comfortably firm sleep surface that resists sinking, offering superior support for all body types. Its custom-fitted cover features a slip-resistant bottom and adjustable elastic straps, ensuring a secure, stable, and wrinkle-free sleep surface night after night.
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Hybrid Lux
![Best for Plush Comfort. Filled with sustainable Advansa's Eco Origin Project Fiberfill.]()
![Best for Plush Comfort. Filled with sustainable Advansa's Eco Origin Project Fiberfill.]()
The 4-inch hybrid topper combines 3 inches of gel-infused memory foam with a 1.5-inch plush fiberfill cover, creating a luxurious sleep surface that offers a significant comfort upgrade. Perfect for combination sleepers who frequently change positions, this 4+ inch topper provides enhanced support and softness. The cover is crafted from TENCEL™ fibers, offering superior breathability, moisture-wicking properties, and a silky-smooth feel, making it a step above ordinary cotton for an elevated sleep experience.
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Active Cooling
![Best for Cooling Relief]()
![Best for Cooling Relief]()
The 4-inch active cooling mattress topper features a smart blend of 2 inches of copper-infused premium foam and 2 inches of supportive foam, designed to relieve pain, promote hygenie, enhance deep sleep, and keep you elevated for optimal comfort. Its advanced, washable cover is crafted with cooling fabric that absorbs ambient heat and wicks away moisture, ensuring you stay cool, dry, and comfortable throughout the night.
Upgrade Your Sleep, Not Your Budget
A Better Way to Great Sleep
With consumers seeking budget-friendly product alternatives, a premium mattress topper is an excellent alternative when replacing an aging mattress isn't feasible. If your mattress is sagging and causing discomfort, a four-inch mattress topper offers a transformative upgrade—delivering restful sleep for years, all at a fraction of the cost of a new mattress.
A Variety of Toppers
We've Got Something for Everybody
We have a variety of different 4-inch thick mattress toppers, including high-density memory foam for pain relief, dual-layered pillow-top & memory foam for plush comfort, and copper-infused foam for cooling relief.
All of our 4-inch mattress toppers have a 90-day guarantee, fast & free shipping, and hassle-free returns.
Not the thickness you need?
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Our mattress toppers are also available in the following thicknesses: