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The Big Sleep: 11 Sleep Fun Facts


1. B&W

Studies suggest that most people dreamed in black and white before color television was introduced in the 1960s. But after color TV caught on, up to 83 percent of people’s dreams were in color. 

2. 95/5

We forget as much as 95 percent of our dreams. 

3. Sleepwalking

As many as 17 percent of children and 4 percent of adults are sleepwalkers.

4. Cat naps

A cat spends roughly two-thirds of its life asleep; comparatively, humans spend one-third of their life in bed.

5. ASL while in REM

Deaf people have been known to sign in their sleep (just like people talk in their sleep).

6. Brits in the Buff

Brits are partial to sleeping naked. Nearly one-third of people surveyed in the United Kingdom said they sleep most nights with nothing on—while only 8 percent of Americans sleep in the buff

7. Quiet Contemplation

Taking time for reflection can help a good night’s rest; 47 percent of Americans meditate or pray in the hour before going to sleep. 

8. On Repeat

Some of the most common recurring dreams include falling, being chased, being back in school, having your teeth fall out, feeling unprepared for a test or important event, and flying.

9. Wide Awake

Eleven days is the record for the longest period a human has gone without sleep; it was set in 1964 by a California student named Randy Gardner (his sleepless span was part of a science fair experiment).

10. NASA Nap

According to NASA, the perfect nap—one that results in peak performance and alertness—lasts for 26 minutes. 

11. Caffeinate to Feel Awake

Feeling tired and need a power nap? Drinking coffee before taking a short nap will allow time for you to rest and for the caffeine to kick in, leaving you feeling awake and refreshed post nap.

Sources: American Academy of Sleep Medicine, American Psychological Association, Consciousness and Cognition, NASA, National Sleep Foundation

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