4LB ViscoPLUSH Memory Foam Topper - Blue

4LB ViscoPLUSH Memory Foam Topper - Blue


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For those of you that need a little more cushion added to your mattress, our 4lb memory foam mattress toppers are the solution. We offer a mattress topper that is perfect for those seeking that final piece that will allow them the best night of sleep they've ever had. Our 4lb memory foam mattress toppers come in multiple sizes, starting at Twin and going up to California King, so no matter what size mattress you have, we have a topper to fit it. It also comes in varying thickness, so you can choose from 2 inches to 4 inches thick.

4lb memory foam mattress toppers offer great solutions to everyday issues. Memory foam molds to your body while in use, so it matches your unique shape to give you the best support for your body. It also matches temperature, which is great during summer and winter, when the temperatures hit their extremes. If you're used to waking up with stiffness, this will solve those issues. The memory foam reduces stress on pressure points, and allows for better circulation, so you will wake up feeling refreshed and ready to take on the day.

We have various covers available to add additional comfort to your memory foam topper. Please click here for information regarding covers.

Custom Memory Foam Toppers are Available!
We can custom make memory foam toppers to any size. Please Contact Us for details.

Certipur-US logo
Foam meets CertiPUR-US® certification.
  • 2", 3", or 4" 100% visco-elastic memory foam
  • ILD rating of 14 for medium support
  • Meets CA TB117 flammability requirement
  • Flexible, resilient, and durable
  • Superior pressure relief reduces back pain
  • Temperature-sensitive foam responds to body heat
  • Molds perfectly to body's contours
  • Increases circulation
  • Hypoallergenic
  • Made in USA
  • 60-Day 100% Guarantee*
  • 7-Year Warranty*
Note: 4LB memory foam topper may differ in color from light blue to dark blue.
Resources Notes

*Warranty Information
For details on the Memory Foam Mattress/Topper Warranty and Guarantee, see the return policy on our Customer Service page.

Manufacturing Tolerances
Products may carry a size tolerance depending on the style and job. Please see our Tolerance Table.

Handle With Care
Please handle with care as foam may tear when being handled due to its weight. Foam Factory, Inc. is not responsible for torn foam due to improper handling. We suggest purchasing an optional cover for the topper to help prevent tearing of the foam and increase longevity.

Write a Review

Wonderful product
Regina Hall | December 7th, 2022
I bought the 4 lb memory foam in 3 inch size. Product is wonderful. Relief of joint pain and better rest and sleep. I would highly recommend.
Great deals for any product you need.
Doug | September 8th, 2022
Pretty much - if you need it - foambymail.com can supply it. They have many options are very reasonable prices. Be comfortable ordering here.
Amazing foam!
Tasha | August 16th, 2022
This is the 2nd order I've placed with them and love it as much as the first! Bought the 2" for my camper mattress and love it. I do however like for my home bed a 3" 5# foam to be able to "sink" in a little more for molding around my curvy hips. I will definitely order from this company ANYTIME I need foam!
Sheryl | August 13th, 2022
Terrific service. Garrett went above and beyond for customer satisfaction and service. Prompt communication. Great product and price. Totally renewed my dual chamber bed.
Great product!
Vicki Noble | July 26th, 2022
This was my second order from foam by mail! The first, a new camper mattress. We slept like a baby on it! Perfect fit! The second order, a replacement foam insert for our Select Number mattress. Perfectly measured, perfect fit! Better than original foam, and the mattress is more comfortable than it was new!! Quick, well packaged delivery! Great company to work with! Will always give them any business I can!!
Dyanne Mihalcoe | June 20th, 2022
I am very pleased with the fast service I got when placing my order. Was here within 2 weeks and I had also ordered the cover for my foam topper and to my surprise they had already put the cover on the topper. What a relief as I am 83 years old and was wondering how I was going to put the cover on. Slept on my "new" bed last night and it was wonderful. Thank you Foam Mattress.
Awesome product!
Chris Lason | May 20th, 2022
We have been using a 4 inch foam mattress topper for years. The quality and density of the major brand we used to buy has been decreasing despite their claim it was still 4lb density. This one is as good as the first one we ever bought! I certainly notice the difference in my back.
4lb. 2in. memory foam
kit pascarella | May 10th, 2022
Couldn't be happier with the foam! The 4lb 2in.memory foam is the sweet spot! Remember that!
Jill B. | May 5th, 2022
I got the 4LB ViscoPLUSH Memory Foam Topper - Blue Twin 39" x 75" size, 2". I've been sleeping on it for about a week now and it is amazing. So far, it's great for my severe fibromyalgia. Like sleeping on a marshmallow - in the best sense. No complaints here!
Life changing!
Susie | May 4th, 2022
This is an incredible topper! Soft, cushy, but not too soft. Made a waaaay too hard mattress tolerable and will now be the comfort layer on my diy mattress. No off-gassing! CS is fantastic! Super fast responses and very helpful! Sent foam samples to help make my choice. Very pleased! I wish you guys offered topper covers. Otherwise, you have everything I need for my bed & the beanbag I am making with the now un-needed toppers I discarded in favor of this one! High quality product!
Pretty good
Lisa Bowman | January 28th, 2022
I have bought a few different toppers from different places and this one is the second best I have gotten. Years ago, I bought one that I really loved but Haven't found another one like it since. This topper is a little too soft when I am lying on my back. It seems to work pretty well when I am lying on my side though. I weigh about 140 and my son weighs around 120 and both of us would prefer a little firmer topper. I am thinking about getting the 5 lb topper. One wonderful thing about this topper that I have never experienced before is that there was so bad smell! I was so happy about that because I have asthma and any chemical smell bothers me. And I mean ANY.
memory foam
Barbara Lee JELUS-TYROR | January 23rd, 2020
I had a customer who needed a custom cushion and wanted memory foam as part of it, I used Lux foam as the basis on 3/8 inch plywood, covered with the memory foam and marine vinyl. I used trimmings of the memory foam on the wood. He is very happy with the comfort and his caretaker likes the easy cleanup.
Great compromise of support and comfort
Jeremy Brown | January 22nd, 2020
I had a foam by mail 4" 5LB memory foam topper and a 3" 3LB memory foam topper before I purchased a 4" 4LB topper, and while it was a great balance of support and comfort, it was too thick and my mattress sheet ended up pulling off every night. I replaced the 5LB 4" topper/3" 3LB memory foam topper combo with a 4" 4LB topper, and while it is slightly stiffer than my old combination, I enjoy that my sheets do not pop off the corners of the mattress in the middle of the night.
4 LB topper CA King
Stephen Nishimuta | December 26th, 2019
2 years ago we moved and purchased a memory foam mattress at our new place. Having had a memory foam mattress at our old house for 7 years which we loved, we ordered another one which we thought was similar but have not been happy with it. They memory foam layer was just didn't seem to have the same blend of softness and support as our old one and we were convinced it was inferior. Most manufacturers really don't list the specifications like country of origin or density. It was surprisingly difficult to find one but did find a 4LB USA made topper at foam by mail. When it arrived we put it right on top of the old mattress but found we would sink in too far. The next day we flipped the mattress over, put the topper on it and it is perfect. The inferior memory foam layer is now facing down and our 4LB topper rests on the what was the mattress bottom being a standard foam base or whatever it may be. After a week of sleeping on this we are very happy. I find myself sleeping for longer periods and turning less. I highly recommend this topper for anyone searching for a high quality memory foam.
Got It Right This Time!
Patrick | November 20th, 2019
Perfect! I love this pad. I replaced a 4 inch 5lb pad which was a little too firm for me. This one has the perfect balance between softness and support. Would buy again, for sure.