Chapter 1: Light Sleep (5 minutes)
Light Sleep, our muscle relax and prepares us to sleep, this process usually takes 5 minutes.
Chapter 2: Intermediate Sleep (45 minutes)
Intermediate Sleep, our breathing slows down, heart rate slows down, and our body temperature decrease slightly. Since there is so much that needs to be done in this chapter before we can move on, this process takes a much longer time, 45 minutes.
Chapter 3: Early Deep Sleep (5 minutes)
Early Deep Sleep, the body is well prepared for Deep Sleep to occur and the body slowly enters into Deep Sleep. This process is quick and takes around 5 minutes.
Chapter 4: Deep Sleep (15 minutes)
Deep Sleep, the body stays in Very Deep Sleep. This is the most important part of sleep and the process last around 15 minutes.
Chapter 5: REM Sleep (20 minutes)
REM Sleep, also known as Rapid Eye Movement, is the last chapter of the sleep cycle and this is where dreams occur. The process in this chapter last around 20 minutes.