How to Make Fitted Cot Sheets

Written by crystal marie | 13/05/2017
How to Make Fitted Cot Sheets
Make fitted cot sheets in any size. (transat image by lionel VALENTI from

Cot mattresses come in many sizes and the right size, fitted cot sheets may be difficult to find. Make sheets to fit any size cot. Choose fabric colours and patterns appropriate for the intended use, such as camouflage for camping or character prints for a day care or summer camp. Use 100 per cent cotton fabric for comfort and sew elastic completely around the bottom edge for a snug fit that stays in place regardless of mattress depth.

Measure the cot mattress width, including the depth on both sides. Measure the cot mattress length, including the depth on both ends. Write these two numbers down and add 4 inches to each.

Purchase fabric that is at least as 2 inches wider and longer than the final width and length measurements to allow for shrinkage.

Wash, dry and iron the fabric.

Place the fabric right-side down on the cot mattress. Adjust and trim the fabric, as needed, so that the edge of the fabric extends 2 inches beyond the bottom edge of the cot mattress on all four sides.

Pull the fabric together snugly against the side and end of the mattress at each corner. Pinch the two pieces of fabric together and place pins through both layers along the depth of the mattress. Mark the stitching line with pencil next to the pins, against the mattress.

Sew along the stitching line at each corner and then sew over the first seam a second time as reinforcement. Zigzag next to the stitching line. Trim the seam close to the zigzag stitch.

Fold 3/4-inch of the raw edge toward the back side of the sheet all the way around the perimeter and press. Fold the raw edge in again to meet the crease and press.

Sew around the perimeter of the sheet 1/4-inch from the edge to complete the hem.

Sew elastic completely around the bottom, inside edge of the sheet using a zigzag stitch. Place the elastic on the hem in the middle of one end and stretch the elastic slightly while stitching around the edge of the sheet. Overlap the beginning and trim away any extra elastic.


Use the same process to make sheets for a crib, bunk bed or air mattress.

Tips and warnings

  • Use the same process to make sheets for a crib, bunk bed or air mattress.

Things you need

  • Measuring tape
  • Fabric
  • Iron
  • Ironing board
  • Scissors
  • Pins
  • Pencil
  • Sewing machine with zigzag stitch
  • 3/8-inch wide elastic

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