Sleep cycles
A night has 4 to 6 cycles of about 90 minutes. This length varies with age, stress, and even from one night to the next.
Forget the 8-hour rule: some people sleep well in 6 hours, others need 9.
An alarm set on multiples of 90 minutes is not enough. It is missing one key piece of information: the moment you fall asleep.
So what is the solution?
WakePhase is not a smart alarm app.
ANSWER
WakePhase uses no measurement from a sensor, a microphone or any other device connected to your phone.
You are the only source of data, through the SLEEP© button, which will set a final optimal wake-up time.
No account, no ads, no data sent: everything stays on your phone.