Regarding NREM sleep, which of the following statements is FALSE?

a. Dreamless slow-wave NREM sleep increases after physical exertion.
b. NREM sleep is dream free about 90 percent of the time.
c. NREM sleep occurs during stages 1, 2, 3, and 4.
d. NREM is deepest late in the night during the last stage-4 periods.


ANSWER: d

Psychology

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