DC Super Heroes Even Super Heroes Sleep Board Book

"Like the other bestselling DC Super Heroes board books (My First Book of Super Villains, and My First Book of Girl Power), Even Super Heroes Sleep uses DC's classic art to illustrate fan favorite characters getting ready to re-charge. Batman knows his brain works best after he's gotten a good night's sleep (Goodnight Gotham City!). Green Lantern needs his Power Battery, and Superman's super-strength fizzes out at the end of the day. Budding super heroes will appreciate that they, too need a good night's sleep if they're going to grow big and strong!"