Lilla Zsófia

Lilla Zsófia

Lilla Zsófia
More ideas from Lilla
SLEEP... this calculator tells you the best times to fall asleep depending on what time you need to wake up in the morning. Where has this been all my life???

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.