300
Describe the sleep-study related to insight.
Three groups: Day wakefulness, Nocturnal wakefulness, Nocturnal sleep.
1/4/9 problems given to the groups: at the end of a productive day, in the morning after 8 hours of no sleep (in lab), and in the morning after 8 hours of sleep (in lab).
Results: Sleep group outperformed both other groups (approximately 21, 21, 68 respectively).