Why is My Air Mattress Bulging On One Side? 5 Reasons and Troubleshooting Guide

Not long ago my cousin came to me with a question: “Laura, you know all about mattresses, Why Is My Air Mattress Bulging On One Side? I’m so tired of sleeping on an uneven mattress”. Well, I do know all about mattresses, but the air issue caught me off guard.

But I kept my hands up to research the topic and learned literally everything about air mattress bubbles. And now I want to share this useful information with you.

Stay with me to learn the 5 causes of mattress bubbles, effective solutions to fix them, and essential preventive measures. Let’s dive into it!

Why Is My Air Mattress Bulging On One Side?

The presence of bubbles on your air mattress can be attributed to various factors, ranging from manufacturing defects to usage habits and the mattress’s overall quality. By understanding these potential causes, you can take preventive measures to ensure a more durable and enjoyable sleeping surface.

Let’s begin our research!

Air Mattress Bulging On One Side

1. Bad Factory Connection

One of the primary culprits behind the appearance of bubbles on air mattresses is inferior factory bonding. Let’s discover the mattress creation process to know why this happens:

  • During the manufacturing process, layers of the mattress are fused together using adhesives.
  • If the bonding process is not performed with precision and high-quality materials, it can result in weak points in the mattress structure.
  • Over time, these weak spots may lead to the separation of layers and the formation of bubbles, which could compromise the mattress’s overall integrity.
Why Is My Air Mattress Bulging On One Side. Bad Factory Connection

2. Mattress Overinflating

Overzealous quick inflation might seem like a quick and easy way to achieve a softer or more comfortable sleeping surface, but too much air flow comes with downsides. Exceeding the recommended air pressure can put excessive strain on the mattress material and seams, leading:

  • Bulges;
  • Bubbles.
Mattress Overinflating
Important! It’s essential to follow the manufacturer’s inflation guidelines to maintain the mattress’s proper shape and prevent air from accumulating in undesired areas.

3. Exceeding the Maximum Load Capacity

Every air mattress has a specified maximum load capacity, which refers to the maximum weight it can support without the risk of damage. Ignoring this limit and subjecting the mattress to excessive weight can cause stress on the seams and materials. Resulting in will be:

  • Uneven air distribution;
  • Air mattress bubble formation.
Exceeding the Maximum Load Capacity
Important! Always be mindful of the weight limits and consider getting a larger mattress if you frequently host guests or require additional support.

4. “Expiration Date”

Though air mattresses don’t have a traditional expiration date like food products, they are not designed for indefinite use.

  • Over time, the materials in the mattress can lose quality, and the seams can weaken;
  • As the mattress nears the end of its intended lifespan, bubbles may start to emerge as signs of wear and tear.
"Expiration Date"
Note: Typically, air mattresses last up to 3-10 years. Checking the manufacturer’s guidelines for the expected lifespan of your mattress can help you determine if it’s time for a replacement.

5. Poor Quality Air Mattresses

In some cases, the frustrating appearance of air mattress bubble may be attributed simply to its overall quality. Opting for a mattress of poor quality or one that hasn’t been manufactured by a reputable brand can significantly increase the likelihood of encountering issues like:

  • Air mattress bubbles;
  • Leaks;
  • Premature wear.
Poor Quality Air Mattresses
Note: Investing in a high-quality air mattress from a reliable manufacturer can go a long way in providing you with a comfortable and bubble-free sleep experience.

How to Fix a Bulge in an Air Mattress in 6 Easy Steps?

Well, once we’ve identified the causes, let’s get to troubleshooting. There are steps you can take to address and potentially fix this issue:

How to Fix a Bulge in an Air Mattress in 6 Easy Steps?

Step 1: Prepare Your Air Mattress by Removing Bedding

Before attempting to fix the bulge, remove all bedding and sheets from the mattress. This will allow you to have a clear view of the affected area and make the repair process easier.

Step 2: Begin Deflating the Mattress

Carefully open the air valve or use an air electric pump in reverse to start deflating the mattress. Ensure that all the air is expelled, leaving the mattress fully deflated.

Step 3: Apply Pressure on the Bulge During Deflation

While the mattress is deflating, apply gentle pressure on the bulge with your hands. This pressure can help redistribute the air inside the mattress and may reduce the size of the bulge.

Step 4: Inflate Your Mattress Once More

After fully deflating the mattress, begin inflating it again to your desired level of firmness. During the inflation process, keep an eye on the bulge to see if it improves. Sometimes, simply deflating and inflating the mattress can help redistribute the air and alleviate the bulge.

Step 5: Seal the Air Valve

Once the mattress is fully inflated, seal the air valve tightly to prevent any air leakage. Check if the bulge has reduced or disappeared. If the issue persists, move on to the next step.

Step 6: Consider Purchasing a New Mattress

If the bulge remains despite attempting the above steps, it may be an indication of internal damage or structural issues that are difficult to repair. In such cases, it might be best to consider purchasing a new air mattress.

Important! If your air mattress is still under warranty, contact the manufacturer to inquire about possible solutions or a replacement. Attempting to fix the bulge on your own may void the warranty.

How to Prevent Lumps in Air Beds? 5 Easy-Peasy Tips

After finding out the causes of mattress ballooning and tips on how to fix the problem, a perfectly fair question might be, “Can air mattress bubbles be prevented?” Let me reassure you. There are a few tips you can follow to reduce the risk of air mattress lumps:

1. Inspect the Area Around the Air Mattress Before You Inflate It

Before placing your air mattress on the floor or another surface, thoroughly inspect the area to ensure there are no potential hazards that could puncture or damage the mattress, like:

  • Sharp objects;
  • Debris.

Clear the area of any sharp items or objects that might cause lumps over time.

Inspect the Area Around the Air Mattress Before You Inflate It

2. Allow the Mattress to Stretch Naturally

When you initially set up your air mattress or if you haven’t used it in a while, allow it to stretch naturally before fully inflating it:

  • Partially inflate the mattress and then let it sit for a few hours or as per the manufacturer’s recommendations.
  • This process allows the materials to settle and expand evenly, reducing the chances of developing lumps.

3. Invest in a Dual-Pump System Air Mattress

Consider purchasing an air mattress with a dual-pump system:

  • These mattresses have separate pumps for inflation and deflation.
  • The dedicated inflation pump helps regulate the air pressure more precisely, preventing over-inflation, which can lead to lump formation.
Invest in a Dual-Pump System Air Mattress

4. Allow the Temperature of Your Air Bed to Match That of the Room

Air expands and contracts with temperature changes. To prevent lumps caused by temperature fluctuations, try to keep your air mattress in a room with a relatively stable temperature.

Important! Avoid placing it in direct sunlight or near sources of heat, as these can lead to air expansion and potential lump formation.

5. Deflate the Air Mattress Overnight

If you are using the air mattress for an extended period, consider deflating it slightly overnight or when not in use for an extended time. This practice allows the air inside to redistribute, minimizing the risk of lumps and ensuring a more consistent sleeping surface.

By following these preventive measures, you can significantly reduce the chances of developing lumps in your air bed, ensuring a more comfortable and restful sleep experience.

Deflate the Air Mattress Overnight


Why does my air mattress have a bulge?

An air mattress can have a bulge due to inferior factory bonding, over-inflation, exceeding the maximum load capacity, reaching its “expiration date,” or being of poor quality.

How do I Fix my Intex Air Mattress Bulge?

To fix an Intex air mattress bulge, first, remove the bedding, deflate the mattress, apply pressure on the lump during deflation, and then reinflate the mattress. If the issue persists, consider purchasing a brand-new mattress.

How Long Do Air Beds Last?

The lifespan of air beds varies based on usage and quality. Generally, a well-maintained air mattress can last anywhere from 3 to 10 years.

How do I know if my air mattress is over-inflated?

You can know if your air mattress is overinflated by checking if it feels excessively firm or if it has visible bulges. Additionally, lying down on the mattress may cause discomfort and a feeling of being lifted too high off the surface.

Why are air mattresses bumpy?

Air mattresses can become bumpy due to factors like poor factory bonding, overinflation, uneven air distribution, or the development of air pockets within the mattress layers.

Why did my air mattress pop?

Air mattresses can pop or develop leaks due to sharp objects puncturing the material, excessive weight beyond the mattress’s capacity, or wear and tear over time.

Can you over-inflate an air mattress?

Yes, overinflation can damage the air mattress by putting strain on the air mattress seams and material. It may cause air mattress bulges, and air leaks, and potentially lead to the mattress popping if the air pressure exceeds the recommended limits.


So, the presence of a bulge on one side of your air mattress can be attributed to various factors, such as inferior factory bonding, over-inflation, exceeding the maximum load capacity, or simply using a mattress past its intended lifespan. To address this issue you can consider deflating and inflating the mattress while applying gentle pressure on the bulge to redistribute the air.

Additionally, taking preventive measures, like inspecting the area before inflation, allowing the mattress to stretch naturally, and investing in a dual-pump system, can help you maintain a smooth and comfortable air bed.

Have you encountered air mattress bubbles? How did you solve it? Please share your comments below.

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