Custom Sleeping With Sirens Rectangle One Pillow Case 20x30 (one side) Home Decoration Gift Idea Standard pillowcase is roomy in size (20'' x 30''). Best choice as a gift. The pattern image is only on the front side. Comfortable and 100% Brand New Made of 50% cotton, 50% polyester! Having this soft custom pillowcase will add both comfort and style to your home. Custom Design Your Own Personalized Rectangle Pillow.