Sleep calculator works out your "correct" time to wake up refreshed

Must See 01/02/2022

Turns out it's not just the amount of hours or quality of sleep that allows you to wake up feeling refreshed. It's more than that. Going to bed at the 'right time' is arguably the biggest factor to wake up feeling great!

Hillarys, a decor company have created a sleep calculator to find your accurate bedtimes based on the time you want to get up, so you can wake up feeling fresh!

So apparently it's more to do with sleep cycles than getting more hours of sleep. If you wake up at the wrong time during the cycle, you find yourself being more tired even if you slept for longer hours. 

A sleep cycle lasts about 90 minutes in which we move through five stages of sleep. Four of which are non-rapid eye movement (NREM) sleep and the other is rapid eye movement (REM) sleep. 

We go from light sleep in Stage 1 to a very deep sleep in Stage 4. It is difficult to wake someone in Stage 4 of a sleep cycle, which is why you might feel exhausted if you wake up in this Stage. 

Stage 5 REM sleep is when most dreaming happens. 

The sleep calculator has stated four points to be remember:

  • Most people take about 14 minutes to fall asleep and this is factored into your bedtime by this sleep calculator.
  • The Sleep Calculator works out the ideal time for you to start snoozing by counting in sleep cycles.
  • Each cycle lasts roughly 90 minutes and you should pass through five or six of them each night.
  • Waking up mid-cycle can leave you feeling grumpy and tired; rising in between phases will help you to start the day with a smile on your face.

So according to the sleep calculator, 

If you need to get up at 7 am you need to go to bed at either 9.46 pm or 11.16 pm. If you have to stay awake until late or you are a night owl, then 12.46 am or 2.16 am.

If you need to get up at 6 am, the bedtime hours are 8.46 pm, 10.16 pm, 11.46 pm or 1.16 am.

If you need to get up at 8 am, the bedtime hours are 10.46 pm, 12.16 pm, 1.46 pm or 3.16 am.

For other bedtimes, check Hillarys sleep calculator here.