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.
Hereâs a surprise: a healthy dose of deep sleep is about 20% of overall sleep. Thatâs less than I thought. If this is the case, then even my worst night with 30% would be way above the norm. If we only had three phases, I neednât worry. have data from the past year. Last night I got 2 hrs 36 minutes of âdeep sleepâ, and my total sleep was over 8 hours. My data shows sleep that is completely interrupted-the largest band of deep sleep was 31 minutes, most are under 9 minutes.