Infants who napped for at least 30 minutes within four hours of learning a new behavior were better at remembering it the next day compared to infants who didn't nap at all.
Morning and afternoon naps helped prevent some of the hormonal and immune changes that occurred following a night of sleep deprivation.
Reading on a tablet (such as an iPad) in the hours before bedtime made people fall asleep later, reduced their sleep quality, and made them feel less alert in the morning.
The proportion of time in bed spent asleep was more important than sleep duration for kids' math and language grades.
Night owls (people who prefer to stay up late) were found to be more entitled and exploitative than morning people.
The sensation of a ghost nearby is an illusion caused by the brain misreading signals from the body and attributing them to an external 'other' instead of to the internal 'self'.