Question

as the sleep cycles continue, the proportion of rem sleep in each cycle decreases.

please select the best answer from the choices provided

t
f

Explanation:

Analyze sleep cycle progression

During a typical night's sleep, sleep cycles repeat approximately every 90 to 120 minutes. As the night progresses and sleep cycles continue, the duration of deep NREM sleep (Stages 3 and 4) decreases, while the duration and proportion of REM sleep in each cycle increases.

Evaluate the statement

The statement claims that the proportion of REM sleep in each cycle decreases. Since the proportion of REM sleep actually increases as the night goes on, the statement is false.

Answer:

• T
• F (Correct answer)