A que horas deitar (várias que não interrompam um ciclo) para acordar descansado?
Citação:
"For a 6.35am rise time, go to bed at 9.21pm, 10.51pm, 12.21am or 1.51am. The Sleep Calculator website reads: "Getting a good night's sleep is about more than simply going to bed early – it's about waking up at the right time too. "Using a formula based on the body's natural rhythms, the Sleep Calculator will work out the best time for you to rise or go to sleep." The calculator works on the principle that everyone sleeps in about five or six cycles which last roughly 90 minutes. Waking up midway through a cycle can leave you feeling grumpy the next day. The idea is to wake up in between cycles and feel refreshed in the morning."
Google says:
https://www.google.pt/search?q=sleep+calculator+app&oq=sleep+calc&aqs=chrome.2.69i57j0l3.7039j0j4&client=ms-android-xiaomi&sourceid=chrome-mobile&ie=UTF-8
E uma app Android (que não requer acesso à internet e tem a calculadora de Power Naps também):
https://play.google.com/store/apps/details?id=com.cycle.sleepcalculator
