What does the density of memory foam mattress mean?


The density of a memory foam mattress refers to the weight of the foam within the mattress in units. Foam density is calculated by Indention Force Deflection and is measured by kg per metre cube (kg/m3). If the IFD is higher in memory foam, it will be more firm and supportive to your body’s pressure points. Many people have a misconception that the density of memory foam mattress is linked to the durability of a mattress, which is not true. The durability of a high quality memory foam mattress has no link with the density. The choice of different densities is to accommodate people with different weights with the same level of firmness and support. Picking the right memory foam mattress can be quite difficult and confusing due to the high number of different types of memory foam mattresses. It is for this reason I have written this blogpost to help you understand variations in the density of memory foam mattresses and their respective qualities. I want to try simply the various types available to ensure you choose the right density of memory foam mattress.

density of memory foam mattress

There are mainly 3 different levels of memory foam densities including low density, medium density and high density. Let’s go through each of the levels to understand their individual roles.

Low-density Memory Foam
Low-density memory foam is usually is below 40kg/m3 and has its own benefits. The very first advantage of low density memory foam is its affordability factor. Many people do not go for memory foam mattresses due to the fact that they can be quite expensive but low density memory foam mattress is available at a very reasonable price. Low density memory foam mattress does wonders when you lie down on it, with temperature controlled technology the mattress ensures that you are at an ideal body temperature for a relaxing and soothing night’s sleep. The softness level of low density foam is much higher as compared to mattresses with higher densities. As low density foam is thin it is not suitable for people who are overweight. Low density memory foam mattresses are ideal if you are slim.

Medium-density memory foam
Medium-density memory foam mattresses are around 40 to 80kg/m3. These types of mattresses have a higher density of foam making them an overall better quality mattress. This density level is most commonly used by memory foam users. Medium density memory foam mattresses are renowned for their comfort and mid-range support. Medium density memory foam mattresses are not as soft as low density mattresses but its softness level is quite popular among consumers. As far as its price is concerned, medium density memory foam mattresses are not that expensive but are slightly more expensive than low density memory foam mattresses. They offer ideal support for normal to medium weighted people.

density of memory foam mattress

High-density memory foam
High-density memory foam mattresses have an average above 80kg/m3 of high-density foam and are renowned for their superior quality. High density memory foam mattresses are unbeatable in terms of their comfort and support and are ideal for people with back pain. If you are suffering from back problems or experience muscle pain while sleeping, then high density foam mattresses will provide outstanding comfort and support as they contain pressure relieving technology. High density memory foam is comparatively expensive and not within the budget of every consumer. These types of mattresses are ideal if you are overweight or of a stocky build.

density of memory foam mattress

Hopefully you are now familiar with the different types of densities of memory foam available. To enjoy the maximum benefits of a memory foam mattress, please ensure you choose the correct density of memory foam mattress by reading the above guide. You can contact me on Twitter @aafzal_uk, if you need any further assistance.

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