Make your own doll mattress for American girl doll furniture and beds with this simple step by step sewing tutorial designed for beginners.
For one mattress finished size 10" x 19" I used:
1/2 - yard of fabric
Stuffing from recycled pillows and stuffed animals
2 - Pieces of Fabric 2 1/2" wider and 2 1/2" longer than the desired finished mattress size (for 2" thick mattress)
Please read through the entire plan and all comments before beginning this project. It is also advisable to review the Getting Started Section. Take all necessary precautions to build safely and smartly. Work on a clean level surface, free of imperfections or debris. Always use straight boards. Check for square after each step. Always predrill holes before attaching with screws. Use glue with finish nails for a stronger hold. Wipe excess glue off bare wood for stained projects, as dried glue will not take stain. Be safe, have fun, and ask for help if you need it. Good luck!
Now this a little tricky, but once you "get" it you'll breeze through. Open up the corners so the seams you stitched in step 1 are matched up, and the corner forms a 90 degree angle, with the seam down the center. Pin. Then line a ruler up with this seam and mark a 2" clip off the corner. Sew a seam right on the mark you made.