Surprising Facts About Dreams and Sleep Science

Humans spend about one-third of their lives sleeping, which equates to roughly 25 years for an average lifetime.

The longest recorded period without sleep is approximately 11 days, achieved during a scientific experiment in 1964.

Dreams typically last only 5 to 20 minutes each, even though they might feel much longer when you remember them.

People can have up to four to six dreams a night, but most are forgotten by the time they wake up.

Around 12% of people dream entirely in black and white, with this number decreasing since the advent of color television.

REM sleep, where most vivid dreaming occurs, helps in the consolidation of memory and learning.

You can only dream about faces you have already seen, whether you consciously remember them or not.

Sleep paralysis is a phenomenon where a person is conscious but unable to move, often accompanied by terrifying hallucinations.

Though it’s rare, some people can control their dreams in a state known as lucid dreaming.