How Thick Of A Memory Foam Mattress Is Best

If you want to know how thick of a memory foam mattress is best, you can consider 5 to 8 inches. However, it’s not enough that you know the number. You also have to understand what makes this mattress thickness ideal, especially for a memory foam bed. 

Furthermore, five inches is not the only ideal thickness for memory foam. We recommend reading how thick a mattress should be. The explanations in that mattress thickness guide will help you understand this article more. 

how thick of a memory foam mattress is best


What Is The Best Thickness For A Memory Foam Mattress?

The best thickness to get for a memory foam mattress can range from 4 to 5 inches, but the overall mattress construction can be around 8 inches. However, it would be best to consider your sleeping position and body type because each person will vary in the beneficial mattress thickness for them. And in most memory foam mattresses, the manufacturer will usually indicate the thickness for each layer they used in the bed’s overall construction. 

In general, your memory foam mattress can get as thick as 8 inches. Do not be confused because this size considers a minimum 3-inch thick comfort layer and a 5-inch thick base layer. 


Memory foam mattress comfort layer

Memory foam mattresses have a comfort layer, which is the top part of the bed responsible for the pressure relief and contouring characteristics. You can select a two to three-inch memory foam for the comfort layer to provide good cushioning without losing support. However, your body type, sleeping position, and special medical conditions can also affect the best memory foam thickness for your mattress’ comfort layer. 


Memory foam mattress base layer

The layer at the bottom of the memory foam mattress is the base or foundation layer. It is responsible for the durability and support of the bed, so you must get a memory foam as thick as 50% of the total mattress thickness for the base layer. Some memory foam mattress manufacturers will also use a poly-foam base layer. 


What Is The Average Thickness Of A Memory Foam Mattress?

Memory foam mattresses typically range between 2 to 14 inches, depending on the model and manufacturer. A good baseline is 8 inches, but you can get a thicker memory foam bed around 10 to 14 inches if they are compatible with your needs to ensure a well-supported and comfortable sleep. However, do note that mattress thickness is not a one-size-fits-all factor, so you must know what type of memory foam is best for your needs and preferences. 


Is 2 Inches Of Memory Foam Enough?

Two-inch memory foam is reasonable if you are looking for a mattress topper made from this material. This thickness is also the cheapest, so you can maintain a budget while still improving the contouring of your bed. Furthermore, this memory foam is thin enough not to make the sleeping surface feel too hot. 


Is 4 inches of memory foam enough?

A four-inch memory foam mattress is a good option if you are tight on the budget. Typically, this mattress thickness uses a low-density memory foam perfect for people who need a soft yet supportive bed. Unfortunately, however, low-density memory foam is not that commendable in durability. 


Is 8 inches of memory foam enough?

Eight inches is the perfect thickness for a memory foam mattress because it isn’t too thin or thick. Moving will be easy because it’s still relatively lightweight, and you won’t lose support because it is thick enough to provide pressure relief and cushioning.


Is 10 inches of memory foam enough?

An average adult will feel well-supported on a 10-inch memory foam mattress. This thickness also makes an excellent base to keep the sleeper from sinking too deeply. 


Is 12 inches of memory foam enough?

Heavier individuals or people who share the bed will be best with a 12-inch memory foam mattress. Getting anything thinner can make motion more noticeable, which can disturb the other person sleeping. 


Does Thickness Of Memory Foam Mattress Matter?

The thickness of the memory foam mattress is crucial because it affects the support and comfort you’ll experience when sleeping. For example, side sleepers need a thicker mattress to cushion their shoulders and hips, while stomach sleepers must use a thin memory foam mattress to keep their spine aligned. Furthermore, the thickness of the memory foam mattress can indicate its longevity because a thin base layer won’t provide enough support to avoid premature mattress sagging. 


Are Thicker Memory Foam Mattresses Better?

Thicker memory foam mattresses are not immediately better because every sleeper is different. However, you can weigh the pros and cons of a thick memory foam bed. A thicker memory foam mattress will withstand wear well, especially if you’re a heavier individual or you’re sharing the bed. 

On the contrary, the thicker memory foam bed will be heavier, and thus, moving it around will also be less convenient. You can learn more about these factors with our guide regarding how many inches a mattress should be.



And that’s it! To recap how thick of a memory foam mattress is best, you can consider 5 to 8 inches. However, there are many variables when deciding on memory foam bed thickness, including its overall construction, your sleeping position, and body type. 

We recommend checking each mattress layer to know if the mattress can provide the ideal support and comfort for you. Here is also how a memory foam mattress works to understand the material better. 


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