An incredibly exciting and totally enlightening book about the dazzling range of sleeping habits of animals – mammals, birds, fish and insects – and how this can inform us about the evolution and benefits of human sleep.

SLEEP ACROSS THE ANIMAL KINGDOM
by Barrett Klein, Ph.D., Niels Rattenborg, Ph.D. and John Lesku, Ph.D.
Harvard University Press, 2026
(via The Martell Agency)

Written with wit, clarity, total narrative accessibility, and a keen sense of scientific adventure by three experts in the field, this project represents the best of popular science writing that readers today crave, joining together two subjects that are endlessly fascinating and relevant: the mysteries of sleep and animal behaviors. Perfect for readers of Ed Yong.

The book will cover such topics as:

• What is sleep? (vs. hibernation, or other forms of immobility)

• The diversity of sleep (from birds and mammals to roundworms, jellyfish, and the possibility for sleep in plants or single-celled organisms)

• Sleeping in strange ways and places (the strange locations where animals sleep and the unusual postures they can adopt, including sleep in flight, or while vertically-suspended underwater

• When sacrificing sleep is worth it (new recognition of the remarkable ability of some animals to sleep little, and yet side-step, or possibly endure, the negative consequences commonly observed in sleep-restricted humans)

• The comforts and dangers of sleeping with others (animals that sleep with other animals, such as parasites and social sleeping insects)

• Who else dreams?

• Sleeping in a disturbed world (both for screen-loving humans and urban wildlife living with light pollution).

Barrett Anthony Klein is Professor, Biology Department, University of Wisconsin – La Crosse, conducting research about sleep, learning, and communication, primarily with insects, and teaching courses in Animal Behavior, Entomology, Scientific Visualization, General Biology, and Organismal Biology. He is one of the featured scientists for a documentary about sleep (aired in Germany and on David Suzuki’s Nature of Things in Canada, and soon to come to the USA), and served as consultant for COSMOS: Possible Worlds. He has appeared on Wisconsin Public Radio and Wisconsin Public Television. Starting in 2023, he will lead a year-long series of online workshops through Johns Hopkins University, free and open to the public, on visualizing science and participate in a five-year effort, funded by the National Science Foundation, to help find solutions to the biodiversity crisis.

Dr. Niels Rattenborg, the leading world expert on sleep in birds, heads the Avian Sleep research group at the Max Planck Institute for Ornithology in Germany. Rattenborg mission is to gain insight into the evolution and functions of sleep through studying birds. He is particularly interested in understanding how birds reconcile the inherent need for sleep with ecological demands for wakefulness, such as avoiding predation, competing for mates, and flying non-stop for weeks at a time. Rattenborg’s research has been published in top scientific journals, including Nature and Science, and is regularly featured in the international press (interviews for web, print, radio, and TV), spanning 25 languages (see detailed lists below). This includes, The New York Times, National Geographic, Smithsonian, Scientific American, Discover Magazine, Popular Science, The Wall Street Journal, The Times (London), The Guardian, Audubon, Greenpeace Magazine, Huffington Post, The Atlantic, Time Magazine, and Business Week.

John Andrew Lesku is Associate Professor and Lab Head, Sleep Ecophysiology Group School of Agriculture, Biomedicine and Environment at La Trobe University, Melbourne, Australia. His work has been featured in Science and Current Biology and BBC News, Discover Magazine, LiveScience, NBC News, New Scientist, Science and CBC Radio (interview on As It Happens)