If you thought you couldn’t be productive in your sleep, you might want to rethink that one.
The Role of Sleep in Learning New Words
How Sleep Works - Why Is Sleep Important?
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Humans can learn new foreign words while asleep
Pelayo MD, Rafael: 9781579659578: Books
How to Sleep: The New Science-Based Solutions for Sleeping Through the Night
It turns out you can learn things while you're asleep
Study Shows That New Vocabulary Can Be Learned While Sleeping - Interesting Engineering
Top 10 tips on how to study smarter, not longer
You really can learn while you sleep
Can We Learn New Words In Our Sleep? New Study Has the Answer
Not getting enough sleep in college can affect your GPA, study finds - The Washington Post
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Can you learn in your sleep? Yes, and here's how
How to memorize things fast: 11 memorization techniques
Sleep Learning: How It Works, Research, and More