Pete Oswald is a #1 New York Times bestselling illustrator and an Annie Award-nominated animation production designer best known for The Angry Birds Movie film franchise and Oscar-nominated ParaNorman, in addition to multiple animated studio films. He is also a children's book author and illustrator and a painter. Pete is the illustrator the New York Times bestselling picture books The Bad Seed, The Good Egg, The Cool Bean, The Couch Potato, The Smart Cookie, and The Sour Grape written by Jory John. Pete lives in Los Angeles, California, with his wife and three sons.

"With humor that can only be dubbed fluffy and terrific bouncy rhymes, this warm bedtime story of a "sheep-over" will be a comfort for young children...Oswald's cartoon-like illustrative style features wonky shapes that bubble across the pages, mimicking the sheep's bumpy wool and highlighting his wide-eyed expressions, while light purples, golds, and blues express an atmospheric serenity that Sheepy and readers will need. With its strong story and ebullient illustrations, this story can help address readers' personal apprehension about sleepovers or spark discussion in a preschool setting about recognizing and easing homesickness." -- School Library Journal

"Cummins brings her gently humorous story, written in bouncy rhymes, to a predictable ending, but readers will enjoy it nonetheless, especially kids (er, lambs) who have had their own first "sheepovers" at a beloved relative's home. The cheerful, lively illustrations are endearing; boldfaced typefaces of different sizes are incorporated playfully into the text. Young readers needn't feel sheepish about appreciating this sweet, entertaining story." --Kirkus reviews

"As in the previous volume, the text is relatively short and, while written in prose, includes rhyming couplets from time to time, just for fun. . . . Oswald's illustrations are both amusing and endearing. As a classroom read-aloud choice, this picture book is sure to elicit sleepover memories from young listeners." --Booklist