This application lets you calculate your optimal sleeping time in three ways: Sleep Now (for going to bed right now), Sleep At (for setting a specific bedtime), and Wake At (for setting a time you need to wake up).
Complete with alarm clock integration and bedtime notification reminders. Check out the screenshots :)
Based on sleepyti.me bedtime calculator.
NOTE: This application does NOT contain an alarm clock, but rather relies on Android to locate an appropriate application to handle alarms. In this way, all of your existing alarm clock settings (ringtone, vibration, duration, etc.) are preserved. If you see an "Alarm clock activity not found" message, Android was unable to locate such an application; please consider downloading one for free from the Android Market. If there is an alarm clock application on your phone and you are still seeing this message, that means the author of the application has chosen not to attempt to handle ACTION_SET_ALARM intents, and for this reason, you must use a different one. Sorry for any inconvenience!
Keywords: sleep, right, sleepright, sleepytime, sleepyti.me, sleepy, time, bedtime, calculator, alarm, clock