Sleep cycles & a calculator that tells you the best times to fall asleep depending on what time you need to wake up in the morning. How interesting- if you need to be up at this says to go to sleep at either or due to different sleep cycles.
Sleep Calculator - tells you what time to go to sleep based on when you need to wake up and to not interrupt your sleep cycle! Gives you multiple times to go to bed based on your personal wake up time.
me You put in what time you have to wake up and it tells you different times you should go to bed so to avoid waking up in the middle of a sleep cycle, which causes grogginess and a general unrested feeling.
Not Sure What Time You Should Go To Bed? You Need This Sleep Calculator