Sleep Calculator

Sleep Calculator lets you determine the perfect time to go to sleep or wake up based on your sleep cycles.

Select your Age:

I want to wake up at I want to go to bed at

Hours

Minutes

Result:

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About Sleep Calculator

Welcome to our Sleep Calculator. This free tool helps to estimate what time is best for you to wake up or sleep. Also, it gives multiple sleep or wake-up time results based on your age and given time input.

The average human takes 15 minutes to fall asleep. So, our calculator includes these 15 minutes in the final output.

How to Use the Sleep Calculator?

Firstly, select your age from the dropdown options.
There are two tab options. The first one is to calculate the sleep time and the second one is for wake-up time. So, choose the required one.
After that, input the time when you want to sleep or wake up. You can choose the hours and minutes from the dropdown options. Also, choose the appropriate AM or PM option.
Lastly, press the Calculate button to get the result.
As a result, you can see four different time results on your screen. The first and second result is the most recommended one for an adult person. Because it includes 5-6 sleep cycles that normal human needs. Each sleep cycle is 90 minutes.