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How to Fix the Gap Between the Mattress and Bed Frame?

Having a comfortable and properly aligned mattress is essential for a good night’s sleep. However, sometimes we may encounter a common issue where a gap forms between the mattress and the bed frame. This gap not only affects the aesthetics of the bed but can also be uncomfortable and disturb our sleep.

In this article, we will explore the reasons behind this problem and provide practical solutions to fix the gap between the mattress and bed.

Table of Contents

Causes of Gaps Between Mattress and the Bed Frame

Gaps between the mattress and the bed frame are usually a result of several causes, which we discuss below:

  • Size Discrepancy Between Mattress and Bed Frame

Using a smaller mattress on a bed frame made for big beds may lead to gaps between the mattress and bed frame.

If you are using a queen-size mattress on a bed designed specifically for a king, with no doubt, you will see gaps. The gaps make your bed look bad and lead to the mattress sliding.

  • Wear and Tear off the Bed Frame or Mattress

Sometimes the gaps you see between the mattress and bed frame result from natural wear and tear of your mattress or bed frame. This is because the foam material designers use to make mattresses may soften over time because of the pressure from the sleeper’s body. This leads to gradual softening that creates sagging, which in turn causes gaps.

Hybrid and innerspring mattresses also suffer from wear and tear. The metal coils designed for these bed types usually lose tension over time, causing less rigidity, resulting in gaps between the mattress and the bed frame.

  • Incorrect Assembly or Installation

Improper installation of your bed frame and mattress can also cause a gap between the mattress and bed frame.

If you do not fix the bed frame as required following your manufacturer’s instructions, there will be a probability of getting gaps. A mattress not secured well in all the bed corners may cause gaps.

  • Shifting or Movement During Sleeping

If you are a person who shifts a lot during sleep, you may be causing your mattress to shift, also. Your mattress may begin slipping, causing gaps between it and the bed frame.

Measuring the Gap

You can use a measuring tape to measure the gap between them. Measure the length, width, and depth of the gap using a measuring tape. This will provide you with accurate dimensions, allowing you to choose the appropriate materials or solutions to bridge the gap effectively.

Solutions For Fixing the Gap

There are several solutions available to fix the gap between the mattress and bed frame. You can consider the following options based on your specific needs and the size of the gap:

Adding a Mattress Topper

mattress topper

Getting a mattress topper can help you sleep better on a worn-out mattress that creates a gap between it and the bed frame. Using a mattress topper is simple; you only have to lay it on top of your bed to get an additional comfort layer.

You can get mattress toppers individually as accessories. They are also designed with 2 to 5 inches of latex, foam, wool, and feathers, among many other options. If your mattress suffers from normal wear and tear, a thicker topper designed using dense materials performs best on such mattresses.

Additionally, an excellent mattress topper usually assists in reducing the effects of a sagging mattress by giving you a more even resting surface. It serves as a temporary measure to reduce the gaps and improve your comfort.

Using Bed Gap Fillers or Wedges

Gap fillers will best fill the gap between the mattress and the headboard. You can get them in different sizes and shapes to suit your requirements. They are usually designed from foam and other materials like folding screens.

You can get gap fillers or wedges in sizes of 1, 4, or 6 inches to fill the gaps, depending on their size. There are different types of gap fillers you can get in the market, and they include:

  • Wood Boards

You can get wood boards at hardware stores. You have to measure the area between your bed frame and the bottom of the headboard, remembering its width. Then go with the measurements to the hardware store for an exact filler. Then fit the board under the headboard.

Pillow Stop
  • Pillow Stops

You can also get pillow stops to fill the gap. They are usually upholstered and sometimes evenly cushioned to give you an aesthetic touch. They can be ideal if you love an elegant bed. Even though they are expensive, pillow stops will fill the gap and give your bed a smart look.

Utilizing Pool Noodles or Rolled Towels

Pool Noodles to fill the gap between mattress and bed frame

Pool noodles or rolled towels may not give you a permanent solution, but they will solve the problem for a while. All you have to do is to take some rolled towels and place them inside the gap.

The towels should be big enough to fill the space. Also, remember they should not be too small to fall inside the gap. You can use your old towels or get new ones to help you fill the gaps.

Adjusting the Bed Frame

If the above tips do not work, you can check your bed frame. Ensure you adjust by making it to be properly aligned with the headboard. You do this by removing the box spring if you use it alongside the mattress and then positioning it well with the headboard.

Meanwhile, you need to remove any obstruction that can cause gaps by aligning your headboard with its bed frame.

Change Your Mattress

If you have a too-small or too-big mattress for your bed frame, the only option might be to get a good-fitting mattress. Ensure you know the correct size of your mattress and bed frame to avoid creating another gap.

Seeking Professional Help

If you notice gaps even after using these tips, you can now consider professional help. You may contact your manufacturer or experts for further assistance; Just remember to work with reputable experts if you decide to go that way.


Will adding a mattress topper fix the gap?

Yes, a properly sized mattress topper can fill in small gaps and provide additional padding.

Can I use pillows to fix the gap?

Yes, placing pillows or cushions between the mattress and bed frame can temporarily fill the gap and provide support.

How do I measure the size of the gap?

Use a measuring tape to measure the length, width, and depth of the gap to determine the most suitable solution.

Will fixing the gap improve my sleep quality?

Fixing the gap between the mattress and bed frame may potentially improve sleep quality. When there is a gap, the mattress can shift or sag, leading to discomfort and improper support. 

By properly aligning the mattress with the bed frame, it can provide better stability and support, allowing for a more restful sleep. 


A gap between the mattress and bed frame can be frustrating and disruptive to your sleep. If you understand the causes of the gap and implementing suitable solutions, you can restore comfort and ensure a well-supported sleeping surface.

Whether you opt for ready-made products or seek help from others, addressing this issue will help you achieve a restful and undisturbed night’s sleep.

Author: Jessica

Jessica is a lover of both life and gardening. She loves to share his passion for both on social media. He often posts about his latest gardening projects, as well as tips and tricks for others who might be interested in starting their own gardens. She also frequently posts about the different aspects of his life that he enjoys, from spending time with friends and family to exploring new places.

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