4-th episode of 2-th season "NOVA"

What "NOVA" 4-th episode about

Most of us spend one-third of our lives in a state of which we understand remarkably little-some people sleep for only a few minutes a night, and function perfectly well, while others declare that eight hours isn't enough. NOVA explores traditional notions about how much sleep we need; looks at effects of the sleeping pill, and, perhaps the most baffling of all aspects of sleep-dreaming.

Episode number: 4

Episode name: "The Secrets Of Sleep"

Episode release date: 25 november 1974 at 02:00

Status: aired