How many hours on average does a human sleep in its lifetime?

Answer 1

1/3 of how long they live...we spend on average 1/3 of our whole lives in bed asleep!

so usually over 20+years of everyones lives is spent in bed...what a waste! but if you didnt sleep you wouldn't live very long, so its a necessary evil and a part of life..

Answer 2

Well... an average adult sleeps an average of 8 hours per night, multiply that by 365 days and you get 2920 hours a year. A child would be an aver age of 10 hours per night, and therefore, 3650 hours a year!

Answer 3

The average person spends approximately 33% of their life asleep. So if a person lived to be 90 years old, then they would have been asleep for 30 years. So the number of years depends on how old you are. A 9 year old would have slept for 3 years.

Answer 4

Sleep duration varies by age, and by individual. Older adults are likely to require more sleep than the 7 to 8 hours recommended, as do younger individuals (14 to 17 hours for infants, down to 8 to 9 hours for teenagers).

Getting the optimum sleep in an average year (365 days) would total 2555 to 2920 hours. In one study, one-third of healthy adults got less sleep, and one-fifth of healthy adults got more sleep.

Answer 5

Now the average human sleeps 9 hours a day so simply multiply this figure by the

number of days in a year and you will get your answer.

Answer 6

There are 8736 hours in a year on leap years,but there are 8760 hours in a year on normal years.

Answer 7

1 year = 8,765.81 hours.