MANY PEOPLE STRUGGLE with sleep – with or without the extra stresses of a pandemic and lockdown – finding they stay up way past 10 pm, then unable to fall or stay asleep. In the last couple of years, more people are aware of their sleep patterns using sleep tracker apps and fitness watches – arguably adding to the problem.
The Stages of Sleep
We have four stages of sleep; from light to deep, physically restorative sleep, and then REM sleep. REM sleep is a very active sleep where we have most of our dreams.
We go through these cycles at various times during the night, each usually lasting around 90 minutes, but the percentage of each stage changes depending on whether you’re at the beginning or the end of your sleep, and this means that no area of your sleep is more important than the other.
Deep Sleep Data
Sleep specialists agree that for adults, the range of 6.68 to 10 hours of sleep per night is the optimum amount. Deep sleep is on average 20% of the total sleep, which works out at between 80 and 120 minutes of deep sleep per night.