Editions of Dr. Seuss's sleep book

Hardcover, 64 pages

English language

Published Aug. 12, 1962 by Random House Books for Young Readers, Div of Random House, Inc., simultaneously by Random House of Canada, Ltd..

school & library binding

English language

Published Oct. 19, 1999 by Tandem Library.

Paperback

Published by Harper Collins.

64 pages

English language

Published Nov. 19, 2003 by Collins.

64 pages

English language

Published Sept. 12, 1962 by Random House Books for Young Readers.

56 pages

English language

Published Nov. 19, 1962 by Random House.

Hardcover, 56 pages

Published April 16, 1984 by HarperCollins Publishers.

64 pages

English language

Published Nov. 19, 2017 by HarperCollins Publishers Limited.

Undetermined language

Published Nov. 19, 1964 by Collins.