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iSleepCalculator is the easiest way to see how many hours of sleep you will get at night. iSleepCalculator also helps you track the time left before bed.

Simply enter the number of hours of sleep you want each night and your wakeup time, iSleepCalculator will do the rest!

* Ability to set number sleep hours desired each night
* Number of hours left before bedtime
* Bedtime required to get desired amount of sleep
* How many hours of sleep you will get once in bed