Slaves of the Slave System Plantation agriculture was wasteful, largely because King Cotton and his money-hungry subjects despoiled the good earth; quick profits led to excessive cultivation, or âland butchery,â which in turn caused a heavy leakage of population to the West and NW.
It means that since most adults need 8-9 hours of sleep, they will need about 1.6-1.8 hours of deep sleep to feel fully functional next day. However, the time of deep sleep is changed and that's mainly due to the change in the sleep need of different group of people. For instance: Age Group.
Summer Daze: The Best Temperature for Sleep. Studies have found that in general, the optimal temperature for sleep is quite cool, around 60 to 68 degrees Fahrenheitâ¦Temperatures in this range help facilitate the decrease in core body temperature that in turn initiates sleepiness.Summerâs here and the time is right for sweating through the sheets.tudies have found that in general, the optimal temperature for sleep is quite cool, around 60 to 68 degrees Fahrenheitâ¦Temperatures in this range help facilitate the decrease in core body temperature that in turn initiates sleepiness. Summerâs here and the time is right for sweating through the sheets.