Do Memory Foam Mattresses Sag?

by Dylan Bowen May 17, 2022 2 min read

Do memory foam mattresses sag?

What is a memory foam mattress?

A memory foam mattress is a mattress that blends a layer of memory foam with either foam support or springs.

Will my memory foam mattress sag?

I'm sorry to tell you that if a memory foam mattress is used for an extended period, then it will sag. But if you purchase a high-quality memory foam mattress it will have a longer lifespan. However, memory foam mattresses do sag substantially less than other mattresses do.

How do memory foam mattresses sag?

A memory foam mattress will begin to sag when it is compressed much more than the mattress's compression level which is around 2cm. All memory foam mattresses come with a reflex layer. This layer is designed to protect the mattress from the wear and tear of constantly being used. If you buy a cheaper mattress that is of low quality, then inevitably the mattress will sag at a much faster rate. Usually, if a memory foam mattress does sag it is mostly permanent and a new mattress may have to be purchased, though in some cases if the sagging isn't severe then there are ways to minimise the sagging.

How to prevent and minimise sagging:

Choose the mattress carefully- it's more beneficial to purchase a higher quality mattress as this increases the longevity and the lifespan by helping to minimise the amount of sagging that can happen in the mattress. You should look for a mattress that comes with a removal topper, this is because if the mattress has a removable topper, then you will be able to rotate the core. A mattress topper is also designed to absorb the majority of the compression, so you won't have to replace the mattress. It is also important to purchase a mattress that can hold your weight, all mattresses will have a weight limit so you should check this ad and then buy the mattress that is more suited to you.

Distribute the weight- all mattresses will sag, but you can prevent this by rotating your mattress every few months. You should also switch up the side of the mattress that you sleep on, if you always sleep on the right side of the mattress then switch over to the left and vice versa.

How to find the best memory foam mattress?

The best memory foam mattress has a mixture of memory foam, latex foam, hybrid, or upholstery foam materials. These materials can help to slowly minimise mattress compression. I would also recommend you look for a mattress that has around 5cm of foam.

Dylan Bowen
Dylan Bowen


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