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Bedtime calculator shows exact time you need to sleep to wake up feeling refreshed

If you’ve ever woken up feeling like you’ve had no sleep, you could probably benefit from learning exactly when you should go to sleep to wake up feeling fresh

Sleep is something that we all know we need, but unfortunately is something that not everyone can get; whether that’s down to young children, stressful jobs or insomnia.

But, while sleep issues sadly plague so many people, it turns out that a simple formula could help a few poor sleepers to get the good night’s rest we all crave.

According to the clever folk over at blind and curtain company Hillary’s it’s all about our sleep cycles, which last approximately 90 minutes each.

According to them, we should be aiming to get between five and six sleep cycles per night in order to wake up feeling refreshed and ready for the day, so the company has put together a calculator which works out exactly what time you need to go to bed depending on what time you need to wake up the next morning.

Hillarys’ sleep expert, Lucy Askew, told Mirror Online: “It is so important to get a good night’s sleep as this can really affect how you function the next day. Getting decent sleep helps with your productivity, concentration levels and your cognition so it affects almost every aspect of your life.

“Not only this, but sleep can lower your risk of things like heart disease, helps keep your immune system strong and it is vital for supporting your mental wellbeing.

“More serious health problems associated with not getting enough sleep include high blood pressure, diabetes and heart attacks. There are also studies that link not getting enough shut eye with depression.

So when should you go to bed?
If you need to get up at 6am , you should go to bed at either 8.46pm, 10.16pm, 11.46pm or 1.16am.

If you need to get up at 6.30am , you should go to bed at either 9.16pm, 10.46pm, 12.16am or 1.46am.

If you need to get up at 7am , you should go to bed at either 9.46pm, 11.16pm, 12.46am or 2.16am.

If you need to get up at 7.30am , you should go to bed at either 10.16pm, 11.46pm, 1.16am or 2.46am.

If you need to get up at 8am , you should go to bed at either 10.46pm, 12.16am, 1.46am or 3.16am.

If you need to get up at 8.30am , you should go to bed at either 11.16pm, 12.46am, 2.16am or 3.46am.

If you need to get up at 9am , you should go to bed at either 11.46pm, 1.16am, 2.46am or 4.16am.

If you need to get up at 9.30am , you should go to bed at either 12.16am, 1.46am, 3.16am or 4.46am.