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Sleep disorders-Take the quiz

1. An ideal amount of sleep every day for adults is... *This question is required.
2. Sleeping during the daytime is... *This question is required.
3. Which organ in the body is responsible for sleep initiation? *This question is required.
4. Which system dysfunction is a common cause of disturbed sleep? *This question is required.
5. A child with a nightmare wakes up with... *This question is required.