Sleep Science

[Lewis]

Sleep Science: Why You Can’t Stay Asleep at Night

http://www.cheatsheet.com/health-fi...-its-more-natural-than-you-think.html/?ref=YF

 

[Michael74]

Except that sunlight is not a steady 10 hours per day. At my latitude, its about 15 in the summer, and about 9 in the winter. At the equator, its 12 all year long.

So maybe they had 2 sleep periods in the winter?

 

[Lewis]

Do people really need 8 hours of sleep ?

 

[tim-from-pa]

Yes, I can dig 2 sleep cycles. I already do that. 7-8 hours at night and a nap at work during the day when nobody's looking.

Seriously, like my cats, I can fall asleep any time and anywhere. However, depending on the time of the day, my sleep is not as deep. For example on my days off I often take a nap in the afternoon. A half an hour to and hour and a half is adequate but I fall asleep immediately.

Hey Michael74: You live at about my latitude -- in the dead of summer (solstice) I have about 15 hours of daylight. Next thing I know you'll be saying you make sundials like me.

 

[Michael74]

I learned to appreciate naps as I got older. People need different amounts of sleep. Some can get by on 5 hours per day, and some need 9.

Yes, I am one state over Tim.

 

[Lewis]

I learned to appreciate naps as I got older. People need different amounts of sleep. Some can get by on 5 hours per day, and some need 9.

Yes, I am one state over Tim.

You are correct

 

[Smallist]

Unstable for me. Sometimes 8 hours and sometimes 5-6 hours. But I found no matter how long I sleep, my mental condition depend on my relationship with God. If I have good relationship with God, then I'd be fresher that day even I slept 5 hours the day before that day. If I haven't good relationship with God, I'd be apathetic that day even I slept 8 hours the day before that day.