What is a sleep calculator and should we be using one?
Here's everything you need to know, from the length of a complete sleep cycle to when you should be getting some shut-eye…
We all follow a similar sleep pattern, with a full night’s sleep broken into multiple sleep cycles, alternating between transitional, light and deep sleep. Although it may seem trivial, waking up at the wrong stage of a sleep cycle can have a dramatic effect.
Waking up at the end of a 90-minute sleep cycle, when in a light sleep, will leave you feeling refreshed and rejuvenated. Waking up during the wrong stage of a sleep cycle, when in a deep sleep, however, can leave you feeling exhausted.
When in a deep sleep, your body temperature decreases, your heart rate slows and your muscle activity winds down – waking up in that state can be very disorientating, and often when you wake up confused or feeling groggy, it is down to waking up at the wrong stage of your sleep cycle rather than sleep deprivation.
The trick is ensuring that you wake up at the right stage of your sleep cycle. That’s where using a sleep calculator comes in.
What is a sleep calculator?
A sleep calculator is a generator that shows you the best time to go to sleep and set your alarm in the morning. Using a formula based on the body’s natural rhythms, it will provide you with a selection of times to set your alarm clock at, making sure you don’t interrupt a sleep cycle and therefore guaranteeing that you wake up in the morning feeling energised and refreshed.
Video: How Much Sleep Do You Actually Need?
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