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Depends on how old you are.

The amount of sleep each person needs depends on many factors, including age. Infants generally require about 16 hours a day, while teenagers need about 9 hours on average.

For most adults, 7 to 8 hours a night appears to be the best amount of sleep, although some people may need as few as 5 hours or as many as 10 hours of sleep each day. Women in the first 3 months of pregnancy often need several more hours of sleep than usual.

2007-02-18 13:07:58 · answer #1 · answered by ICG 5 · 0 0

When you look, touch, feel, listen, anything, you are using up energy.

When you run low on energy, your body and mind needs to relax. You do this by sleeping.

6 - 8 hours is natural. You would usually wake up around this time because your body tells you that you regained energy.

2007-02-18 21:01:58 · answer #2 · answered by John Becker 5 · 2 0

I've often wondered why humans need sleep. We can restore energy by relaxing, meditations, yoga, or just quiet time. Sleep has become second nature. I'll be watching for more answers.

2007-02-18 22:05:12 · answer #3 · answered by daughter_helping 3 · 0 0

Yea energy.

2007-02-18 21:06:07 · answer #4 · answered by It Co$t To Be Around The Bo$$ 4 · 0 0

BECAUSE EVERYONE HAS CIRCADIAN RHYTHMS EVERY DAY THAT MUST BE IN LINE WITH COMPLETE REST.

2007-02-18 21:05:24 · answer #5 · answered by Dr. Albert, DDS, (USA) 7 · 0 0

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