The 30th President of the United States Calvin Coolidge went to bed at 10, got up between 7 and 9, and always took an afternoon nap lasting 2 to 4 hours which resulted in an average of 11 hours sleep per day/night. It was rummered that this overwhelming need for sleep was caused by the grief and depression over the loss of his 16 year old son to sepsis. It is also said that he always had a glass of buttermilk before retiring to bed to settle his stomach which could also indicate he was under a great deal of emotional distress.
A healthly night of sleep is from 6-8 hrs. 8 hrs is more highly recommended.
The duration of Night Without Sleep is 1.28 hours.
i think that astronauts usually get about six hours of sleep every night when they are in space.
Most people I know get about 10-13 hours of sleep a night. I get about 10 hours of sleep.
12 hours sleep needed
4 hours
Most people I know get about 10-13 hours of sleep a night. I get about 10 hours of sleep.
8 hours
Ages 13-18 need about 8 to 10 hours of sleep. Adults between 25 and 64 years of age need an average of 7 to 9 hours of sleep per night. Adults 65 and older need 7 to 8 hours per night.
Children need about 9-10 hours of sleep a night. Young adults should get around 8-9 hours of sleep a night.
They can sleep for a couple of hours in the day and 12 hours at night.
A one-month-old averages out needing 15 ½ hours of sleep at night and day time; i.e.8 ½ hours of night time sleep and 7 hours of day time sleep, broken up into three naps.