Friday, June 01, 2012

How long does a deep sleep last and how many deep sleep do we experience normally for a night?

By weiwei23 Saturday, March 27, 2010

I want to know how long does each deep sleep last. During deep sleep do we move about, are our muscles involuntary or we are like a dead person? is it hardest to wake a person up during deep sleep? and how many deep sleep do we experience typically for a night(teenager around 14)

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By weiwei23— Last Modified: 12/20/10, First Published: 03/27/10