At 3 O'clock in the Morning, John Has Already Slept

question 33

Multiple Choice

At 3 o'clock in the morning, John has already slept for 4 hours. As long as his sleep continues, we can expect an increasing occurrence of

• A) hypnagogic sensations.
• B) muscle tension.
• C) REM sleep.
• D) Stage 4 sleep.

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