Fabric Requirements... 1 yard for standard pillowcase body. ⅓ yard for pillowcase cuff. ⅛ yard for pillowcase accent trim. Yardage is based on 42 - inch wide fabric. Cutting Instructions... Pillowcase Assembly... a small stitch length, and press seams open. • Lay the cuff strip, right side up, lengthwise. the cuff strip so that the top edges are even. fabric so that all edges are even. all the layers together.
http://www.meandmysisterdesigns.com/patterns/downloads/dilly_dally_pillowcase.pdf
A pillow is designed to provide support and comfort to the body and head. There are three main types of pillows; bed pillows, orthopedic pillows and decorative pillows, with some overlapping of use between these. The appropriate size of a bed pillow depends on the size of the bed.
https://en.wikipedia.org/wiki/Pillow
The finished pillowcase is 1 wider than the pillow. This gives a bit of room around the pillow, allowing for easier insertion of the pillow into the pillowcase. For the length of the pillowcase, I add 10 to the length of the pillow. This allows for a nice, 3.5 hem. If you prefer a pattern piece that will be placed on the fold of the fabric, cut the pattern half as wide (22.25 x 40 for this example).
http://www.craftandfabriclinks.com/pillowcases/cases.html
Poorly made cases have seam allowances that can be seen inside the pillowcase, on the hem. This is a fabullous method for attaching a cuff. If you are not familiar with pillowcase sizes, refer to: Basic Pillowcase Pattern. I provide dimensions for standard, queen and king. For this project, I refer to the contrast hem piece as a cuff. That's basically what it is. This is the same method that I use when attaching a contrast cuff to a pajama pant leg.
http://www.craftandfabriclinks.com/pillowcase_cuff/pillowcase_cuff.html
Fabric Requirements... 1 yard for standard pillowcase body. ⅓ yard for pillowcase cuff. ⅛ yard for pillowcase accent trim. Yardage is based on 42 - inch wide fabric. Cutting Instructions... From print for body:
http://www.meandmysisterdesigns.com/patterns/downloads/dilly_dally_pillowcase.pdf
The classic bed pillow shape is usually a square or rectangle. In the US, they are common in these three sizes (in inches): Standard (20×26 inches), Queen (20×30 inches), and King (20×36 inches). In the US, a less common size is Jumbo (20×28 inches), which is larger than the Standard Size but smaller than the Queen Size.
https://en.wikipedia.org/wiki/Pillow
For example, for a standard case, I know that the finished length will be 32. My finished cuff will be 3. Therefore, the length of my main piece must be 29 (29 + 3 = 32). Allowing for seam allowance, I add 1/2 to the length of the main piece, and to the width of the cuff.
http://www.craftandfabriclinks.com/pillowcase_cuff/pillowcase_cuff.html
From print for accent trim: Cut 1, 2 x 42 - inch strip. Pillowcase Assembly... Use 1⁄4 - inch seam allowance throughout, a small stitch length, and press seams open. • Lay the cuff strip, right side up, lengthwise. • Lay the body fabric, right side up, on top of. the cuff strip so that the top edges are even.
http://www.meandmysisterdesigns.com/patterns/downloads/dilly_dally_pillowcase.pdf
Pillowcase Size vs Pillow Size. The finished pillowcase is 1 wider than the pillow. This gives a bit of room around the pillow, allowing for easier insertion of the pillow into the pillowcase. For the length of the pillowcase, I add 10 to the length of the pillow. This allows for a nice, 3.5 hem. If your pillows are not the size of those we listed above, simply do the following to create your pattern: Width: measure the width of the pillow multiply by 2, then add 2.5.
http://www.craftandfabriclinks.com/pillowcases/cases.html
Body pillows are as long as a full adult body, providing support to the head and neck at the top and to the knees and legs lower down. This type of pillow can be especially useful in providing support for those who sleep on their sides and for pregnant women. Size is 40×140 cm.
https://en.wikipedia.org/wiki/Pillow
how big is a standard pillow case
A standard pillow case is 20 inches by 26 inches.  The standard pillow case is 20 by 26 inches big.