The correct answer is: D. total sleep time is less.
Explanation:
The normal process of aging affects the sleeping patterns of an individual and thus the <u>sleeping time decreases</u> to about 6.5 to 7 hours per night. Older people spend more time in the lighter stages of sleep.
With aging, people face difficulties while falling asleep and tend to wake up multiple times during the night. They also tend wake up earlier in the morning.
