1. Which stage of sleep lasts only a few minutes early in the night, but over 30 minutes by the end of the night?

A. stage 4
B. stage 0
C. REM sleep
D. NREM sleep

2. Recently, Sylvia has begun to experience nightmares and sleep terrors. What is the most likely age for Sylvia?

A. 2 years
B. 8 years
C. 6 years
D. 4 years

3. Which of the following is a similarity between the sleep of newborns and the sleep of adults?

A. Newborns, just like adults, fall immediately into a REM-like stage of sleep.
B. Newborns, just like adults, complete one sleep cycle every 60 minutes.
C. Newborns, just like adults, spend about 50% of sleep in a REM-like stage.
D. Newborns, just like adults, rarely or never experience nightmares and sleep terrors.

4. An adult who sleeps 10 hours per night will spend about ___ hours in REM sleep. A five-year-old who sleeps 10 hours per night will spend about ___ hours in REM sleep.

A. 2; 3
B. 2; 4
C. 2; 2
D. 2; 5

5. In newborns, quiet sleep is similar to _____ in adults.

A. daytime napping
B. daydreaming
C. NREM sleep
D. REM sleep

6. Which of the following stages are you LEAST likely to be in just before you wake up in the morning?

A. REM sleep
B. stage 1
C. stage 2
D. stage 3

7. A boy of eight years sat up in bed with his eyes wide open and screamed. When he was asked what was wrong, he mumbled incoherently, lay back down, and was quickly fast asleep. When is such an event MOST likely to happen?

A. during the first half of the night
B. during the second half of the night
C. during REM sleep
D. during stage 1 sleep

8. A 40-year-old woman needs only 4 hours of sleep per night. How many sleep cycles does she probably go though?

A. 2-3
B. 0-1
C. 4-5
D. It's impossible to predict.

9. A boy of eight years woke up crying and ran to his mother's bedroom. When he was asked what was wrong, he told her about a bad man who chased him while he was asleep, trying to hurt him. Finally, he fell back to sleep next to his mother. When is such an event MOST likely to happen?

A. during the first half of the night
B. during the second half of the night
C. during NREM sleep
D. during stage 1 sleep

10. While sleeping, a 60-year-old man is least likely to have which of the following types of brain activity?

A. theta waves
B. delta waves
C. K-complexes
D. sleep spindles

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