How To Fix Gap Between Mattress And Bed Frame?

How To Fix Gap Between Mattress And Bed Frame?

If you notice a gap between your mattress and bed frame, it can be both uncomfortable and unsightly. The precise way to fix this issue often depends on the size and nature of the gap. Common solutions include adjusting the bed frame, adding padding, or even getting a different size mattress or frame. Let’s dive deeper into these solutions and more to ensure you get a perfect night’s sleep.

Understanding the Problem

First, it’s crucial to understand why the gap exists in the first place. There could be several reasons for this problem:

  • Standard Mattress Sizes: Sometimes, your mattress and bed frame might be based on different standard sizes. For instance, a Queen-size mattress may not fit perfectly into a frame meant for a Full-size bed or vice versa.
  • Older Furniture: Over time, bed frames can become loose or warped, leading to gaps between the frame and the mattress.
  • Improper Setup: If the bed frame is not correctly assembled or the slats are not in the right position, it could create gaps.

Identify the Exact Gap Size

Before taking any measures, it’s essential to identify the exact size and nature of the gap. Use a measuring tape to determine how wide and deep the gap is on all sides. This will help you choose the most effective solution. Measure the frame and mattress to ensure they are the appropriate sizes for each other.

Adjustments to the Bed Frame

One of the most straightforward solutions to fix the gap is adjusting the bed frame:

  • Tighten Screws and Bolts: Over time, the bolts and screws holding your bed frame together can become loose, leading to gaps. Tighten these screws with a wrench or screwdriver to bring everything back together and eliminate the gap.
  • Re-align Slats: If your bed frame uses wooden or metal slats, make sure they are evenly spaced and properly aligned. Misaligned slats can create gaps and uneven support for your mattress.
  • Adding Slats: Sometimes, adding extra slats can help. If your current slats are spaced too far apart, the mattress can sag, causing gaps. Adding more slats ensures the mattress is adequately supported.

Using Mattress Extenders or Fillers

If adjustments to the frame are not possible or insufficient, using mattress extenders or fillers can be a great alternative:

  • Foam Gap Fillers: Available in various sizes and shapes, foam gap fillers can be easily inserted into the gap between the mattress and the frame. These are especially useful for filling smaller gaps.
  • Mattress Extenders: These are additional foam pieces that attach to the mattress, making it wider or longer to fit the bed frame perfectly.
  • Duvets and Pillows: If you don’t want to buy specific products, you can use rolled-up duvets or pillows to fill the gap temporarily. However, this is usually a less stable and less permanent solution.

Adding a Topper or Pad

An easy and effective way to eliminate smaller gaps is by adding a mattress topper or pad:

  • Memory Foam Toppers: Memory foam toppers are thick and durable, making them perfect for filling small gaps. They also provide an additional layer of comfort.
  • Pillow Top Pads: These are quilted mattress pads that add extra cushioning and can help fill gaps effectively.

Make sure the topper or pad fits snugly and doesn’t move around too much, as this can create new gaps over time.

Using a Box Spring

If you are using a platform bed frame without a box spring, adding one might solve the gap issue. A box spring provides a solid foundation for the mattress, ensuring it sits higher and more securely in the frame. Make sure the box spring and mattress dimensions match your bed frame to prevent new gaps from forming.

Custom Solutions

For those who are handy with tools, custom solutions might be the best way forward. You could add wooden or metal extensions to your bed frame to close the gap or even build a custom bed frame that fits your mattress perfectly. This approach requires more time and effort but often results in a more permanent solution.

Replacing the Mattress or Frame

Sometimes, the most effective solution is to replace the mattress or bed frame to ensure they are compatible:

  • Matching Sizes: Ensure that both your mattress and bed frame are of the same size and category. Double-check dimensions before purchasing to avoid future issues.
  • Quality Materials: Investing in high-quality materials for both the mattress and bed frame can prevent gaps from appearing in the future.
  • Consult Experts: If you’re unsure about the right sizes, consult a sleep expert or visit a mattress store to find the perfect fit.

Regular Maintenance

Once the gap is fixed, it’s important to carry out regular maintenance to ensure the issue doesn’t return:

  • Check Screws and Bolts: Regularly inspect and tighten the screws and bolts of your bed frame.
  • Inspect the Frame: Look for signs of wear and tear on the frame and fix them as soon as possible.
  • Re-align Slats: Make sure the slats remain properly aligned and haven’t shifted over time.

Finishing Thoughts

Fixing the gap between your mattress and bed frame can significantly improve your sleeping experience. Whether it’s a simple tightening of screws or a more complex custom solution, addressing this issue will not only make your bed more comfortable but also extend the life of your mattress and frame. Regular maintenance and choosing the right materials from the start can help prevent such problems in the future. Sweet dreams!


  • Aiden Lawrence

    I'm Aiden Lawrence, a certified Sleep Science Coach and senior editor of GoodSleepHub, proud parent of two amazing kids, and a pet lover with a cat and a dog. Join me as we explore the world of sweet dreams and comfy pillows. Let's make bedtime the highlight of your day!

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