Why Does My Air Bed Deflates Overnight?

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Waking up to a half-deflated air mattress is a mystery that besieges many people. If you had that happen to you, you were probably wondering what caused it. Well, the reality is that your air mattress will keep deflating overnight no matter what you do.

It does so because of pressure and temperature differences, as well as the overall design. The air will slowly escape the mattress when you apply pressure on it, such as when you lie down on it. However, there are some things that you can do to prevent your air mattress from deflating overnight.

Do All Air Mattresses Lose Air Overnight?

It’s true, all air mattresses lose pressure overnight. The high-quality ones may lose less pressure than the cheap ones, but they will also deflate to a certain degree. The issue is usually caused by applying pressure to the mattress. When you lie down on the mattress, the weight of your body will push some of the air out.

If you ignore the weight limit, you will push out even more air than usual. But, it’s not only about pressure. For example, if the temperature in the room or tent drops substantially, your air mattress will definitely lose pressure (though not necessarily air). The difference will not be as visible on high-quality mattresses, but even they will lose air. (For a scientific explanation, you can Google the science behind the New England Patriots’ “Deflategate” saga.)

Of course, your air mattress could be leaking too. You could have a tiny leak that you may not be even aware of. Older mattresses that have been in use for quite some time can fall apart at the seams, and that can deflate it even faster. If you take good care of your mattress and store it properly after every use, it should be working for years.

What to Do to Prevent Air from Escaping

The truth is that you can’t stop your air mattress from losing pressure completely, but you can do some things to slow the process. Air mattresses have to be able to lose some air or they would burst when you lie down on them. With that in mind, if the air mattress is deflating more than usual, you are probably doing something wrong. Here are some tips that will help you slow down any deflation.

Don’t stand on the air mattress

Ok, so your air mattress is designed for sleeping. That means that you shouldn’t sit or stand on it. Standing on an air mattress increases the pressure in a small area, which leads to deflating. Not only that, the material could stretch in that area, so you can end up with a weak spot on the mattress.

Sitting and standing on regular mattresses isn’t a problem, but an air mattress can’t cope with so much pressure. So, if you want to reduce the amount of air that escapes the mattress, you should avoid pressuring it too much. Don’t let your children jump up and down on an air mattress either, if you want to keep it in working order for a long time.

Check the nozzle

As you pump and inflate your air mattress, the opening nozzle gets worn out. That’s just how things work, and there’s not much you can do about it. You may close the vent when you’re done with the pumping, and it will look like it’s just fine, but some small amounts of air will be able to escape on the sides.

If that happens, you can use some duct tape to reinforce the entire nozzle and reduce the amount of air escaping. That’s just a temporary fix. You will have to replace the nozzle to prevent further deflation.

Fold the mattress carefully after every use

Most air mattresses come with instructions on how to fold them after each use. If you take your time to fold it as per the instructions, your air mattress will last longer. Years of use will probably lead to some tears and holes appearing on the mattress. If you see any of those, folding the mattress wrong will only cause more problems. You should plug the holes and fix everything the moment you see them. One small hole can become an unfixable tear in no time.

The temperature matters

The vapor pressure of air molecules depends on the temperature. Therefore, if there’s a sudden drop or increase in temperature, the air mattress will lose pressure even if it’s not losing any air.

That may not be as visible during hot summer months as it is in the winter. Cold air will cause your air mattress to deflate quicker than hot air. If you plan on sleeping on an air mattress in a cold room, get a heater to control the room temperature. That should help you minimize pressure loss.

Take Care of Your Air Mattress

So, the bottom line is that you can’t really prevent your air mattress from somewhat deflating overnight. The only thing you can do is to follow the instructions and do what you can to maintain your air mattress in optimal condition. You can buy an air mattress with a built-in pump that adds air automatically when the mattress starts deflating. Otherwise, follow the tips provided and you should be just fine.

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