Sleeping

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Across
  1. 3. A series of thoughts or images during sleep
  2. 4. The sound made when sleeping deeply
  3. 6. Walking while asleep
  4. 7. A brief, light sleep
  5. 8. Trouble falling or staying asleep
  6. 10. A light sleep, often unplanned
Down
  1. 1. Long, seasonal sleep of some animals
  2. 2. A short afternoon sleep
  3. 5. A disturbing or frightening dream
  4. 9. A quick, light nap