
So what happens to we're asleep? Despite the fact that we spend a good portion of our lives fast asleep (around a third), most of us aren’t really aware of the fact that we experience different stages of sleep and different times of the night. Sleep is a vastly complicated science, and a typical night of sleep consists of just five sleep stages. Though sleep can also be divided into two broader stages, non-rapid eye movement (NREM), and rapid...