How to Make a Doll Mattress, Easy DIY for Beginners

Learn how to make a doll mattress with this simple and fun tutorial. This is the essential part of your doll's bedding that will go perfectly with all the other items you create. This is part 5 of my doll bedding series, where I'll show you how to make an 18-inch doll mattress. I've also provided the formula measurements so you can easily adapt this pattern to any size bed.

Doll mattress pattern, How to make a doll mattress

How to Make a Doll Mattress

Supplies

To create your own doll mattress, you'll need the following materials:

  • FABRIC – About half a yard (0.9 meters) of fabric for most 18-inch doll beds. Cotton fabric is ideal for sewing. I used quilting cotton, which is light to medium weight and tightly woven. It comes in many colors and patterns and is easy to find.
  • STUFFING – Polyester or foam stuffing. If you don't have any, you can use fabric scraps as a budget-friendly alternative. Just cut them into small pieces to avoid lumps.

Check out my guide on making doll clothing for tips on the best fabrics and techniques for doll sewing.

Topics Covered

Step 1 - Measure the Bed

Start by measuring the base of your doll’s bed. This one was from IKEA and measures 12 by 19 inches (30.5x48.2 cm) at the wooden base.

Tip: Be sure to measure just the base, not the sides. You want the mattress to fit snugly inside the bed frame.

Step 2 - The Doll Mattress Pattern

Cut two pieces of fabric to the size of the bed base plus a 1-inch (2.5 cm) seam allowance around all sides. So for a 12x19 inch base, you’ll need 14x21 inch (35.5x53.3 cm) pieces.

Doll Mattress Pattern

Step 3 - Stitch the Sides

With the right sides together, sew around the edges of the fabric with a ¼ inch (6 mm) seam allowance, leaving a 3-inch (7.5 cm) gap at one of the short ends. It looks best if you leave the gap at the end of the mattress.

Stitch Around the Fabric
Stitch Around the Fabric

Step 4 - Box the Corners

Box the corners by pressing the seams open and aligning the top and bottom. Mark across at 1 ½ inches (4 cm). This gives the mattress some height and makes it look more realistic.

Measure the Corners of the Doll Mattress

Stitch across the boxed corners and trim them straight.

Box the Corners

Step 5 - Stuff the Doll Mattress

Turn the mattress right side out and begin stuffing it. If using polyester fill, break it into small tufts for even distribution. Make sure to pack the corners for shape and stability. Test the mattress on the bed before closing the gap to ensure it lies flat.

Stuffing the Doll Mattress

Step 6 - Close the Gap

Use a ladder stitch to hand-sew the gap closed for an invisible finish.

How to Make a Doll Mattress, Free Doll Mattress Pattern

In Conclusion

Now that you know how to make a doll mattress, why not continue with the rest of the free doll bedding sewing pattern series? You can make pillows, pillowcases, and blankets too.

  • PART 1 - Free Doll Pillow Pattern
  • PART 2 - Free Doll Pillowcase Pattern - 2 styles
  • PART 3 - Free Doll Mattress Sewing Pattern
  • PART 4 - Free Doll Blanket Sewing Pattern

Once you're done with the bedding, you might want to try an 18-inch doll pajama pattern to complete the look. Your doll will be ready for a cozy night's sleep!

How to Make a Doll Mattress Pattern

Free Doll Clothing Patterns:

  • Doll Cape Pattern
  • Doll T-Shirt Pattern
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