Why do Air Mattresses Deflate Overnight?

Do you ever wonder: why do air mattresses deflate overnight? Even though the advertisement of the air mattress says that it will stay inflated overnight, it just doesn’t happen. Are you doing something wrong? Or is your product faulty? There are a number of different reasons for this. Here, we will discuss some of those reasons and what you can do to prevent your air mattress from deflating during the night.

Cold Temperature

When you submerge a balloon in liquid nitrogen, the balloon shrinks. Why? Because when something is exposed to a cold temperature, the molecules in it lose energy. The molecules do not collide with the sides of its container unlike when it is exposed to a warmer temperature. Because of this, the gas in the container or in this example, balloon, loses pressure and thus shrinks. The same is true for mattresses. There are times that the temperature drops during the nighttime and it can be one of the causes of why air mattresses deflate overnight. You can solve this by keeping the temperature in the room even all throughout the night.


This is one of the most common reasons why air mattresses deflate during the night. If there is a leak, then no matter what you do, the air will eventually get released and the air mattress will not retain its shape. You can solve this by patching up the leak. If the store where you bought it offers patching up, then you can bring it back to them. If it is no longer fixable, then it is time to throw that away and get a new one.

Air Mattress Opening

All air mattresses have an opening where the air goes in and out. When you use the mattress regularly, there is a chance that this opening will lose its sturdiness. When this happens, air will have an easier time escaping from its confinement. You will surely notice this happening when your mattress starts to deflate during the night. You can solve this by taping over the nozzle if you begin to suspect that the nozzle is getting weaker. A weak nozzle is a common reason on why air mattresses deflate during the night.

Improper Care and Storage

If you do not care for your things, chances are they will be damaged sooner. An example would be when folding the mattress after use. You need to fold it properly so that there will be no misalignment which can be a reason about why air mattresses deflate overnight. Caring for it properly will also ensure that there would be no holes appearing on the cloth of the mattress. Proper care for your things will ensure that they last a long time.

Absence of Airtight Valves

Air mattresses have automatic pumps so that the mattress won’t lose air when it is in use. The problem with other air mattresses is that they do not have airtight valves; so even though the pump is working overnight, the mattress still does not stay inflated. Cheap mattresses are usually the ones that have this problem. If you get a high-quality air mattress, you can be assured that they have airtight valves and won’t be a reason why mattresses deflate overnight.