Grumpy Monkey: Up All Night is available in two formats: a board book and a hardcover edition.
Listings show suggested age ranges of 0–3 years for some editions and 4–8 years for others, depending on the edition and format.
The story centers on a slumber-party/bedtime situation featuring a monkey character and explores emotions such as frustration, the challenge of staying up late, and sibling or peer dynamics.
Available listings show the title in English and in Spanish.
The synopsis follows Jim Panzee at a slumber party where he plans activities like bobbing for mangoes and termite fishing, tries to stay up all night, becomes frustrated when plans go awry, and watches his friends fall asleep.