Get time of when to wake up. (REM sleep cycle calculator)
$ wakeup
Assume it takes 14 minutes to fall asleep.
Wake up at:
3:27 AM (1 hour 44 minutes)
4:57 AM (3 hours 14 minutes)
6:27 AM (4 hours 44 minutes)
7:57 AM (6 hours 14 minutes)
9:27 AM (7 hours 44 minutes)
10:57 AM (9 hours 14 minutes)
TBA.
MIT.