This test will tell you the exact time you need to go to sleep tonight


You are always tired. You tell your friends about it; you tell your parents about it. You tweet about it; you put it in the captions to your Instagram photos.

I am tired, you say. So, so tired.

But what if it didn't have to be that way? What if, instead of waking up groggy like you'd never had any sleep to begin with, there was a way of always jumping out of bed feeling fresh?

Step in the Sleep Calculator, which claims to be able to tell you exactly what time, down to the minute, you need to go to sleep to wake up well-rested.

I, for example, wake up at 7:50 in the morning. Thus, the calculator tells me this:

3:06am it is

The site works based on sleep cycles, meaning you won't wake up mid-cycle feeling groggy. And before you ask, it factors in 14 minutes for you to get to sleep in the first place – the amount of time it takes the average person.

You can try the calculator out for yourself here.