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.
You're still tired. The problem: You sleep for eight hours and still wake up groggy and unrefreshed. During a normal sleep cycle, the body alternates between deep and light sleep that should leave you feeling awake and alert. If you're still sleepy after a full night in bed, chances are something is happening to prevent your body and brain from entering those deep, restorative levels of sleep. 2 of 7.