It goes through the first 3 stage of NREM, then it switches over to the last stage REM. Sleep quality changes with transition from one sleep stage to another. Although the signals for transition between the four stages of sleep are mysterious, it is important to remember that these stages. Some people do not sleep through the whole entire sleep phase, so next time you wake up just know you may or may have not finshed to NREM and REM sleep phase. Also make she you get sleep because just like food and water sleep is important
It goes through the first 3 stage of NREM, then it switches over to the last stage REM. Sleep quality changes with transition from one sleep stage to another. Although the signals for transition between the four stages of sleep are mysterious, it is important to remember that these stages. Some people do not sleep through the whole entire sleep phase, so next time you wake up just know you may or may have not finshed to NREM and REM sleep phase. Also make she you get sleep because just like food and water sleep is important