I have seen both! Mom was one of those that stayed up night and day, walking and pacing, quick naps in a chair, and up going again. It was almost impossible to keep her in bed because she had the need to GO GO GO!
The little lady that lives next door to Mom is a sleeper. They get her up and dressed in the morning. She dozes through breakfast, sleeps in a chair until lunch, snoozes off and on during lunch, takes a nap in a chair much of the afternoon, might wake up for supper, then has a nap before her bedtime. She sleeps all night. She wakes up when she needs to go to the bathroom and sometimes for a meal.
I have also known some that used sleep as an escape. They are not truly sleeping but will shut their eyes and "zone out" rather than cope with the confusion they are experiencing. This also is a way to escape boredom. They may actually doze from time to time but it is out of bordom or confusion rather than the need to sleep.
Each is different and know anything is possible