Memory Foam Density For

Mattress Toppers

Last Updated on April 8, 2022

There are a few things to consider when shopping for a dreamy sleeping environment to ensure you get the maximum levels of comfort, relaxation and optimum rest out of your night’s sleep. For example, when shopping for a memory foam mattress, you will inspect the mattress’s density, depth, and size. The same applies when shopping for a high-quality memory foam mattress topper.

That’s why in today’s guide, we’ll try to explain what is the best density for memory foam mattress toppers, how they impact your sleeping experience and how you can achieve the best sleep of your life!

Most Common Memory Foam Densities

Memory Foam Densities

Generally speaking, density is an important way to measure the quality of memory foam. The higher the density of memory foam,  the better relief it offers on pressure points. Also, a higher density foam is more durable and will have a longer lifespan.


Low-density foam means less foam has been used in production, which means a less expensive bed as well as a softer one. It means that you won’t be able to expect a long life from a product with a rating of less than 3 pounds per square foot. 

Low-density memory foam mattress toppers can be used to soften a firm mattress that’s not comfortable enough for a good night’s sleep. However, lower density options are usually not supportive and don’t come with as many benefits. 


Medium-density memory foam is defined as 4 to 5 pounds per square foot. This density level is what most products stay in as many people rate them neither too soft nor too hard, but instead, just right.

Unless you are a heavier person with a large body and you need a firm sleeping surface, then you will probably be happy with a product that has a medium rating. Overall, most high-quality mattress toppers are in this range, which means you have many options to choose from.


What is high-density foam?  You’re in the high-density range when you see a rating of 6 cubic feet or higher. These options are the firmest and most expensive ones.

However, these mattress toppers can last longer than most, and their firmness level makes them perfect for some people suffering from back pain or injuries due to the unprecedented level of support. In addition, high-density mattress toppers can be the ideal choice for heavier individuals, as they will prevent them from sinking in too deep into their beds. 

What is the best density for memory foam mattress toppers?

best density for memory foam mattress toppers

This is a question that can have different answers depending on your sleeping position and body weight. If sleeping on your side is your thing, you should consider a soft low-density memory foam topper because it will provide you with excellent pressure relief.

But if you’re a stomach sleeper with an average weight, a medium-density option is your best bet since it will keep your spine properly aligned and help you with back pain if you have any. Heavier sleepers are advised to pick a high-density product.

Lastly, we would like you to understand that foam density is not the only determinant of firmness. We mean that a low-density foam can be firm, which is why you should check both the firmness and density when making a choice.

Bottom line

Rather than focusing on the thickness and size of a mattress topper, pay more attention to its density. The density of your topper is directly related to the other important characteristics of the product. Understanding this aspect will help you determine if a topper will improve the support of your mattress at home so that you can get a good night’s rest.

You can also take a look at our overview of the best memory foam mattress toppers and alternatively, this page for the best mattress toppers in the UK today.

We hope we were able to answer the how and why when it comes down to ‘What is the best density for memory foam mattress toppers?’, and now it’s our turn to hear from you if any questions regarding the subject were left unanswered. If you want to share some information, we would gladly hear about it in the comments below.

Isabelle Harris
Connect On

Leave a comment

five × two =