Why Do Air Mattresses Deflate

Why Do Air Mattresses Deflate

One way that you can be sure to keep yourself from getting a restful night’s sleep is by sleeping on an air mattress that keeps deflating. Often the most frustrating thing about this situation is when there is no visible hole to repair.  If you’ve ever experienced this, you might have found yourself scouring the internet to figure out why it keeps happening. The truth is, there is more than one reason that can cause this to happen. But mainly, the quality of your mattress is key. Additionally, there are other factors that could be causing your mattress to keep deflating. Let’s have a look at some of them.



The temperature of the air in your room is cooler at night than during the day. This happens because the room temperature drops when the sun goes down. This change in temperature condenses the air inside the mattress which makes the mattress compress. Scientists call this scientific equation the “Ideal Gas Law.” 

People might find this to be a generally interesting fact, but the more important point here is the fact that your mattress will lose some pressure when exposed to the colder nighttime temperatures. So, by the time you wake up in the morning, it is very possible that you might find yourself on a soft, somewhat deflated mattress.



If your mattress has holes, even smaller pinpoint holes, then keeping air in, and the mattress inflated, may be a challenge. It is important to understand that your mattress is not as sturdy as it may appear. In most cases, these mattresses are made from a thin material that’s susceptible to stretching, and even rupturing or puncturing over time. But, there are ways that you can avoid this from happening. If you don’t take care of your mattress by getting on and off gently, then the materials are bound to eventually rupture, and deflation problems will be inevitable. Here are tips to keep your mattress in tip-top shape for as long as possible. 

  1. Fold your mattress with care after using
  2. Monitor the room temperature
  3. Lay as flat as possible when sleeping

Why Do Air Mattresses Deflate


The way you pump air into your mattress can also determine whether, and for how long, it stays inflated. Normally, when you are done filling up your mattress, you will disconnect the pump and not lose air. However, this simple task is sometimes nearly impossible because most mattresses on the market use external pumps that are not completely airtight against the mattress. 

It is important to understand that most mattresses use either a manual or an electric, external pump to inflate them. However, upon detaching the pump, some air will be lost. But the good news is that some modern mattresses use built-in pumps to try and solve this issue. 

Before you fully pump air into the mattress give it some time to stretch. When you fill a new mattress, it will initially appear firm and sturdy. However, the mattress will eventually sag when you start using the bed. The slight sagging normally happens when you didn’t give it enough time to let the material stretch to accommodate your weight. The stretching is normal with the first use and should slow down over time. However, it is more noticeable in lesser quality mattresses. 

You can control the stretching of your mattress by pumping it in the morning and letting it sit throughout the day – or at least for 10 hours. After that, add some additional air until it reaches your desired firmness.


Avoid Sitting on Your Mattress 

If you are used to sitting on your bed regularly, then it’s time you stop it. In fact, one of the worst things that can happen to your mattress is you sitting on it all day long. Sitting on it most of the time puts considerable pressure on the different parts. This is why your mattress will feel deflated before you retire to bed in the evening.