• In the white boxes below, type the words you hear. You will hear each word twice.
       (Remember to use the correct spelling and capital letters, etc.).
  • Click the button at the bottom to check your answers.
  • Press the "refresh" button on your browser to play again.

1. Harvard
2. wear a sleep
3. the quality of sleep
4. outside the 20-25-degree
5. They also that
6. in a cooler
7. drinking
8. an to think clearly
9. an increased chance of getting
10. a more home
11. the impact
12. change

Back to the sleeping temperature lesson.

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