Why do mattresses start sagging?

by Dylan Bowen March 29, 2022 2 min read

Why do mattresses start sagging?

Why do mattresses start sagging?

Why do mattresses sag?

Mattresses start to sag because the foam that is used in the mattress starts to soften over time, this is because as the mattress is exposed to substantial pressure every night from the sleeping individual. Over a period, this gradual softening of the foam starts to present itself as a sinking feeling in the mattress and this then provides even less support for the person sleeping.

How long does it take for a mattress to start to sink? & How to know when your mattress is starting to sink

A high-quality memory foam mattress lives for around 8-10 years, but a standard quality mattress usually starts to sag after using for around 7 years. But there are ways to prevent or slow down the process of a mattress that is starting to sag. A helpful tip you can use to find out if your mattress is starting to sag is by resting something flat across the surface of your mattress and look for gaps underneath it. The most common areas where are mattress usually will start to sag is where heavy spots of the body are placed such as the head, hips, and shoulders etc. 

How to fix a sagging mattress?

I’m sorry to say that you cannot really “fix” a sagging mattress, the only real fix is to send the mattress back to the manufacturer for repairs, or to replace it entirely. There are several things that person can do to minimize the feeling of a mattress that has started to sag. The first thing you can do is you can use mattress topper, buying a mattress topper can help you to sleep more comfortably on a mattress that is sagging. As the name implies a mattress topper is put on top of the mattress, this will then provide extra support and comfort for the individual. As well as flipping the mattress over you can also rotate it, by swapping the foot and the head of the bed, you can increase the longevity of the mattress. Another thing you could do to try and help fix a sagging mattress is by replacing the foundation, in numerous cases, the foundation of the bed can contribute to premature sagging of the mattress. Foundations that have less than six legs can often cause premature sagging, as there is less support around the middle of the mattress. Using extra pillows is also another way you could help with a sagging mattress, though it is a temporary solution for this problem it can help, you can place the pillows in parts of the mattress that are to starting to sag. Some suggest putting a pillow under the mattress itself, to help bolster parts of the mattress, however I do not suggest this method because it can speed up the ageing of the mattress by preventing even support.

Dylan Bowen
Dylan Bowen


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