A 2009 study examining the sleep/wake cycles of S. invicta found that the worker ants averaged a mammoth 253 sleep episodes ...

Some animals have evolved the ability to survive with little to no sleep relying on unique adaptations to stay alert hunt or ...

For most of us, getting less than seven hours of sleep translates into grogginess, sluggish thinking, and an overwhelming ...

Knowing and adapting to the ideal schedule for your sleep chronotype could improve your rest and help you accomplish daily tasks more efficiently, sleep experts say.

Being a puppy can be tiring, so this precious pup is recharging by taking a nap in its owner's jacket. But how much sleep do puppies need?

Dogs may look adorable when they snooze, but their sleeping habits actually hold fascinating clues on how living with humans ...

Daylight savings time might leave some people feeling a little groggy. But at Utah’s Hogle Zoo, animals have their own unique sleep schedules and ...

MB: Whom do you hope to reach? RP: I begin the book with a discussion of the evolution of sleep in the animal kingdom and its benefits, focusing of course on birds and the complexity of their lives.