I want to	wake up at go to bed at
	: AM PM   Now   30 minutes later   1 hour later
Settings My sleep cycle length is minutes It takes me minutes to fall asleep
Settings

Sleep Length Calculator

Use this calculator to compute what time to wake up or go to bed to get a given number of hours of sleep. Use the Hours Calculator if you would like to find out the number of hours slept when you know what times you woke up and went to bed. When counting, please deduct the time taken to fall asleep, which can be very different for different people.

I want to	wake up at go to bed at
	: AM PM   Now   30 minutes later   1 hour later
I want to sleep for
	hours   minutes