The burrito pillowcase is the one with faux french seams that is commonly used for charities like
www.conkerrcancer.org They are also called sausage rolls. Very easy and fun to make, I cut the body 27" and the cuff 9" which is folded lengthwise to make a 4 1/2 " cuff before sewing. I usually don't put in the little trim piece in as it become very wrinkled after washing.