One of Tom Robbins' lesser known novels, Half Asleep in Frog Pajamas was published in 1994 by Bantam Books. Like Robbins' other books, the plot involves an eclectic mix of characters and complicated scenarios, and mixes the mundane with the mysterious, in the form of the Sirius mysteries and the mythology surrounding the Dogon Tribe. Unlike his other books, Half Asleep is written entirely in the second person, present tense.
Robbins was a personal friend of Terence McKenna, whose influence is evident in several of his books. A main character in Half Asleep in Frog Pajamas named Larry Diamond advocates a theory similar to those of McKenna, involving psilocybin.