> There is only one formula for healthy and refreshing sleep: Go to sleep only when you are very tired. Not earlier. Not later. Wake up naturally without an alarm clock.
[0] https://supermemo.guru/wiki/Formula_for_good_sleep:_free_run...
> There is only one formula for healthy and refreshing sleep: Go to sleep only when you are very tired. Not earlier. Not later. Wake up naturally without an alarm clock.
[0] https://supermemo.guru/wiki/Formula_for_good_sleep:_free_run...