Suppose that you are working in a sleep laboratory, where you are monitoring a subject's sleep recording during the night. As the night progresses, you would expect to see that

Suppose that you are working in a sleep laboratory, where you are monitoring a subject's sleep recording during the night. As the night progresses, you would expect to see that

Suppose that you are working in a sleep laboratory, where you are monitoring a subject's sleep recording during the night. As the night progresses, you would expect to see that




A) dreaming becomes less frequent.
B) Stage 3 and 4 sleep periods lengthen.
C) the four-stage cycle gradually lengthens.
D) Stage 1 keeps reappearing.
E) REM periods become longer.


Answer: E