Go the F* to Sleep is a book written by American author Adam Mansbach and illustrated by Ricardo Cortés. Described as a "children's book for adults," it reached No. 1 on Amazon.com's bestseller list a month before its release.

Seriously, Just Go To Sleep is the version you can read to your children!

Both books are autographed by illustrator Ricardo Cortés (http://www.rmcortes.com/).