Just in time for Father's Day, Reuters reports (Expletive-laced kids book parody is unlikely US hit) on the book that mirrors the bedtime frustration of nearly every parent of a toddler: Exhausted parent, wide-awake tot. You probably won't want to read it to your kids.

NEW YORK, June 13 (Reuters) - Adam Mansbach has had three novels and a book of poems published but it was a brief Facebook update wishing his two-year-old daughter would "Go the F**k to Sleep" which helped him hit publishing gold.

Now a year later, the resulting parody of a children's book may be the unlikeliest hit book of the summer.

Ahead of U.S. publication on Tuesday, the expletive-laced book of rhyming verse has advance sales of over 100,000 copies and is in its fifth printing, which takes copies in print to over 400,000.

The movie rights have been bought by Fox 2000.

"After a particularly difficult time putting my two-year-old daughter Vivien to bed, I posted on Facebook ... 'Be on the lookout for my forthcoming childrens book, Go the F**k to Sleep,'" Mansbach recalls of the unlikely night which changed his professional life.

Everybody jokes about it, Mansbach wrote the book, with a parental voice that wobbles between warmth and the end of its rope.

His other work includes two novels, The End of the Jews and Angry Black White Boy. That fame and fortune have come from a slender anti-fairy tale doesn't faze him, "Especially since this book may well be the reason that we are living in a house and not under a bridge."

Samuel L. Jackson narrates the book on YouTube, and it's a free download at Audible.com, which uses Amazon passwords. It's also available in hardcover. An official narrated version is to be narrated by filmmaker Warner Herzog.

There's an interesting backstory here on how Mansbach chose to stay with an indie publisher, Akashic Books, and misunderstood the impact of the book's going viral on the Web before its launch. Author and publisher were appalled when a pdf leaked out of the book. He tells Wired UK, "Those things ricocheted all over the internet. We -- the publisher, the authors -- were mortified by it and spent days if not weeks trying to send cease and desist orders trying to take them down. That shows you what level of understanding we have of any of this stuff."

It tops the New York Times Bestseller List now under the demure title Go the ... to Sleep.

On author Adam Mansbach's Facebook page, a fan suggests a sequel for parents of teens, Get the F@#$% Out of Bed!

Mansbach won't have that experience for another decade.