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Blog Lux Comfort

DIY Mattress Gap Filler

From the Puffy Editorial Team | 5 min read.
DIY Mattress Gap Filler

A common issue in many bedrooms is the gap that forms between two mattresses or between the mattress and the headboard or wall. These gaps can cause pillows to slip through, disrupt sleep, and even pose a safety concern for young children.

Fortunately, with some DIY ingenuity, you can create effective mattress gap fillers. This article explores various DIY solutions for filling these gaps, enhancing the functionality and comfort of your sleeping area.

Mattress Gap Filler

Understanding the purpose and types of mattress gap fillers is essential in selecting or creating the right solution.

What is a Mattress Gap Filler?

  • Purpose: Designed to fill the space between mattresses or between a mattress and the headboard or wall.
  • Benefits: Prevents pillows from slipping, ensures a seamless bed surface, and enhances overall sleep quality.

Mattress Wedge Gap Filler

A mattress wedge gap filler is a specific type of filler that can be particularly effective.

Features of Mattress Wedges:

  • Angled Design: Wedge-shaped fillers fit snugly into gaps, providing a smooth transition between surfaces.
  • Versatility: Suitable for different bed sizes and gap widths.
  • Material Options: Commonly made from foam or other soft, durable materials.

For Puffy mattresses, which offer optimal comfort and support, adding a mattress wedge gap filler can further enhance the seamless and cozy bed setup.

DIY Mattress Gap Filler

Creating a DIY mattress gap filler is a practical and cost-effective solution for bridging unwanted spaces in your sleeping area. With some basic materials and a little creativity, you can customize a filler to suit your specific needs.

How to Make Your Own:

  1. Measure the Gap: Accurately measuring the width and depth of the gap ensures your filler fits perfectly. Use a tape measure to get precise dimensions.
  2. Select the Material: Depending on the gap size and your preference, choose a suitable material like foam, upholstery batting, or high-density fiberfill. These materials offer the right balance of softness and support.
  3. Cut to Size: Using the measurements, cut the material to fit snugly into the gap. If using foam, an electric carving knife can make precise cuts.
  4. Cover for Aesthetics: Create a fabric cover that matches your bedding or bedroom decor. This not only enhances the look but also makes it easier to clean the filler. Use a stretchy, washable fabric for ease of removal and maintenance.

Creative DIY Ideas:

  • Rolled Towels or Blankets: A quick and simple solution is to tightly roll towels or blankets and tuck them firmly into the gap. This is ideal for temporary fixes.
  • Custom Foam Inserts: Tailor-made foam inserts can provide a more permanent and seamless solution. They can be cut to fill the exact space and offer sturdy support.
  • Fabric-Covered Batting: For a softer option, wrap quilt batting in a decorative fabric. This approach allows for more flexibility and can easily be adjusted or reshaped as needed.

By following these steps and ideas, you can efficiently create a DIY mattress gap filler that not only solves the practical problem of the gap but also adds a touch of personalized style to your bedroom setup.

This DIY approach allows for customization to perfectly match the size of the gap and the aesthetic of your sleeping environment.

How to Choose the Right Filler Material

Selecting the best material for your DIY mattress gap filler depends on several factors.


  • Comfort: The material should be soft yet firm enough to hold its shape.
  • Durability: Choose materials that can withstand regular use and pressure.
  • Safety: Ensure the materials are non-toxic and safe, especially if used in children’s beds.

How to Secure a Mattress Gap Filler

Properly securing the gap filler is crucial to ensure it stays in place.

Securing Methods:

  • Velcro Strips: Attach Velcro to the filler and the mattress or bed frame to keep it in place.
  • Non-Slip Backing: Use rubberized fabric or other non-slip materials on the bottom of the filler.
  • Tight Fitting Sheets: A fitted sheet over the mattress and filler can help hold everything in place.

Interested in how Puffy stacks up against other brands? Check out our mattress comparisons: Puffy vs Purple, Puffy vs Nectar, Puffy vs Casper, Puffy vs Leesa, Puffy vs Saatva, Puffy vs DreamCloud, and Puffy vs Tuft and Needle.

Alternatives to DIY Mattress Gap Fillers

If DIY solutions aren’t suitable, there are alternative products available.

Alternative Options:

  • Commercial Gap Fillers: Available in various sizes and materials.
  • Bed Bridges: Designed specifically for joining two mattresses together seamlessly.

Maintenance and Care for DIY Mattress Gap Fillers

Proper maintenance ensures the longevity and effectiveness of your gap filler.

Care Tips:

  • Regular Cleaning: Keep the filler clean to maintain hygiene.
  • Inspection for Wear: Check periodically for signs of wear and tear.
  • Storage When Not in Use: Store in a dry, clean place to prevent damage.

Check out Puffy mattress reviews from real customers and see how we compare with other brands.

FAQs on Mattress Gap Fillers

  • Can I use a mattress gap filler with adjustable beds?: Yes, but ensure the filler is flexible enough to move with the bed.
  • How do I choose the right size gap filler?: Measure the gap’s width and depth accurately before selecting or making a filler.
  • Are DIY fillers as effective as store-bought ones?: DIY fillers can be equally effective if made with the right materials and secured properly.

In combination with a Puffy Lux Mattress, a well-made DIY mattress gap filler can significantly enhance your bed’s comfort and functionality.


A mattress gap filler, whether DIY or purchased, is an excellent solution to eliminate the inconveniences caused by gaps in your sleeping area. By following this guide, you can choose or create a gap filler that meets your specific needs, enhancing your overall sleep experience.

Use our store locator to find the closest furniture or mattress store near you and feel the cloudlike comfort of our Puffy Mattress in person.

Whether you’re bridging a gap between two mattresses or filling space by the headboard, these solutions can provide a seamless and comfortable sleep surface, ensuring a more restful and uninterrupted night’s sleep.

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