Which of the Following Represents the Correct Sequence of Sleep $\rightarrow$

Which of the following represents the correct sequence of sleep stages that a person will cycle through several times, from the time of going to bed at night to the time of awakening in the morning? Which of the following represents the typical sequence of sleep stages that a person will cycle through several times, from the time of going to bed at night to the time of awakening in the morning?

A) REM $\rightarrow$ non-REM stage 1 $\rightarrow$ non-REM stage 2 $\rightarrow$ non-REM stage 3
B) Non-REM stage 1 $\rightarrow$ non-REM stage 2 $\rightarrow$ non-REM stage 3 $\rightarrow$ REM
C) Non-REM stage 1 $\rightarrow$ non-REM stage 2 $\rightarrow$ REM $\rightarrow$ non-REM stage 3
D) Non-REM stage 3 $\rightarrow$ REM $\rightarrow$ non-REM stage 1 $\rightarrow$ non-REM stage 2
E) REM $\rightarrow$ non-REM stage 1 $\rightarrow$ non-REM stage 2 $\rightarrow$ REM