Adam Lennard had never been a sleep-talker until, one night while fast asleep, he yelled, "Enough with the cheese! Enough!" From that night, Adam's exclamations grew exponentially in topic, crudeness, and downright hilarity, and his wife, Karen Slavick-Lennard, had the good sense to write it all down.

Sleep Talkin' Man is the story of Adam, a mild-mannered Englishman with a wild nocturnal life, possibly an entire separate personality, known only as Sleep Talkin' Man. Prone to hilariously hostile outbursts and relentless "ego-wanking", as his American wife Karen terms it, and with notable fixations on both real and invented wildlife, scatology, his own greatness, and the evils of lentils and vegetarianism, Sleep Talkin' Man has for the last few years had his questionable wisdom captured on audio and shared with the world in the viral blog Sleep Talkin' Man.

Sleep Talkin' Man comprises the best quotes and exchanges from the blog, never-before-seen material from Karen's trove of audio files, and essays telling the story of their relationship, the impact of Sleep Talkin' Man's manifestation on their lives, and how Sleep Talkin' Man resembles and, more importantly, differs from Adam's waking personality.