What is the Best Thickness for A Memory Foam Mattress Topper?

What is the Best Thickness for A Memory Foam Mattress Topper?

Mattress toppers are quite an economical and high-cost benefit ratio way of improving your mattress feel and firmness levels, especially if you feel that it has been too old or too firm but do not have the budget to consider anything fancy. 

We have the solution in-house for you.

Not only do we have mattresses with adjustable designs to achieve three firmness levels, but we also have the topper perfect for your in-house old mattress. You could decide whether you want to have the problem solved fundamentally with a brand new mattress or you would settle for a good topper and have better sleep from now on. 

In this article, we will share how to purchase a good topper, what thickness you should go for, and why.

On a side note, it is because people have diverse preferences and habits that we adopt the adjustable design to make sure that it is one product with multiple experiences. 

A thick memory foam topper is a good option since they conform to your body better than the thin ones, but that's not the final conclusion. 

Let's get started with the analysis. 

What is memory foam and why do I want it?

Memory foam is not a natural existence but was invented by NASA in the 1970s. They have an amazing ability to be supportive and adaptive which makes them very flexible. 

Memory foam can be mixed with gel to decrease the problem of overheating since it has low ventilation herein, and it can be produced in various levels of firmness, from highly soft and giving to denser and stronger support ability.  

A new memory foam mattress topper should fit the dimensions of your existing mattress perfectly to ensure it functions as intended. Determine the exact size of your mattress before you begin shopping for a topper, and take the mattress type into consideration to help select the right thickness. 

Mattresses with a pillow top or a quilted top may not require a topper with the same thickness as those with standard tops due to the extra cushioning afforded by these designs. Also, mattresses with specialized tops may have special requirements for rotation.

You could start with the body type, preference, and sleep position to decide the type that fits you. For back and stomach sleepers, need more surfaces to keep the shoulders, hips, and legs straight, while side sleepers need a bit more give to allow the curves of their body to contour into the foam. 

Then it is related to your weight, heavier people need more support, while light people do not need as much. 

Another reason to consider a topper is that it can extend the life of your mattress, or adjust a new mattress when it is not working out as expected. 

Best thickness for a memory foam mattress topper

The thickness choice is between 2 and 6 inches, which corresponds to 5cm to 15cm, and the choice should be based on your needs and weight. 

Heavier body types and those looking to revitalize an old mattress may want to consider a thicker choice. Lighter bodies and those who simply want to adjust their comfort level may prefer a thinner option.

2” thickness range

If all you want to do is change the firmness or softness of your mattress, a thinner 2-inch choice may be all you need. 

When you only need the topper to add an extra soft touch and not rely on it to give a big improvement to your current mattress, then a thin option is enough. 

In case your bed is a bit lower than what you prefer, and in terms of looks it also needs an extra top, then consider the thinnest topper or mattress pad.

Another consideration which is important is the memory foam density. When it comes to memory foam, denser material offers greater support for sleepers while less dense memory foam makes for a plusher sleep surface. 

Those who toss and turn frequently at night can benefit from a denser foam. For mattress density to make a noticeable difference, a minimum thickness of 2 inches is recommended for most sleepers. The lower the density, the easier it is to keep cool with a memory foam topper.

3”- 4” thickness range

3 inch to 4-inch toppers are amongst the most popular for pain management and injury recovery as they provide a lot of support and cradling of the body when a softer version is chosen. 

If you choose the firm type among this range, then it is best suited to adjust the overall feel of an old and retiring mattress or adjust the feel of any mattress that is not satisfactory.

These types are the best option for anyone who wants to sleep on memory foam but does not have the budget for a mattress. 

Take into account your mattress condition when deciding on a mattress topper thickness. It’s important to inspect your bare mattress top for obvious signs of wear. Look for areas worn smooth by constant turning or indentations from poor weight distribution. 

If your mattress is particularly firm or worn, then a thickness of 3 to 4 inches should provide an appropriate level of comfort. These toppers provide greater levels of cushioning and support along with enhanced protection for the underlying mattresses. 

Mattresses with little signs of wear may work best with a 2-inch topper or less, especially if you prefer a firmer mattress for a good night’s sleep. This also works with mattresses that already have decent padding or a built-in pillow top.

5”-6” thickness range

These ones are perfect for heavy bodies and people who are looking for a complete change of their mattress feel. 


After the analysis, we are confident that you know how to find the topper that best fits. Choosing the right topper thickness will keep you cradled and comfortable all night long.

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