No, not that tabloid exploitation crapfest we've been spammed about, I found this in a 'Hollywood minute' type post in rec.arts.tv.
LITTLE JERRY: Jerry Seinfeld's about-to-be-published children's book recounts the pain of wearing a Halloween Superman costume that was too big -- "Superman's pajamas" -- with a winter coat over it. The New York Daily News says the book is dedicated to Seinfeld's wife, Jessica, "and our little Sascha, the sweetest candy of all."
Dave (Superman. Go figure.)