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If you slept 9 hours a day times 365 days in one year, that equals 3, 285 hours.

By sleeping 3, 285 hours in one year, by age 12 you would have slept 39,420 hours over 12 years.

HOWEVER! These totals do not take into consideration some important points, which include these:

  • Newborns and infants sleep longer than 9 hours of every 24 hours.
  • Toddlers to pre-school often also sleep longer than 9 hours of every 24 hours.

Therefore, from birth to pre-school would likely result in differing sleep patterns.

  • School-age children do begin a pattern of sleep but there may be days, weeks or months that the "average" differs.
  • Times of illness, family emergency or problems, or other unusual events could cause different sleep patterns.

Therefore, the total numbers given above would likely be over-inflated as well.

  • Even through grade school, high school, and adult years, "average" varies. A person rarely sleeps the same amount each night, even though it seems to be an "average number" overall.
  • During grade school and teen years, especially, Saturday becomes a "sleep in" day, resulting in 12-13 hours of sleep for many young minors.
  • Naps are not included in the figure given above.

Therefore, the the total numbers given above would likely be under-estimated.

The only scientific way for anyone to truly know how long they have actually "slept" over a 12-year period is to be continually hooked to an EKG which measures brain waves and shows when a person actually falls asleep and when they awaken, and for an outside person to keep accurate records of each day's sleep.

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15y ago

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