Sleeping well for an entire night, without waking up once, seems to be a surprisingly rare thing, but it’s actually what’s required if you’re to be entirely productive – without feeling tired – the next day.
Many people think that simply going to bed at the right time guarantees them a good night’s sleep, only to then wake up – more often than not – between 3:00am and 5:00am. Sometimes this can cause problems, particularly when someone finds it difficult to return to sleep.
The hours between 3:00am and 5:00am are sometimes referred to as the hour of the wolf, after Swedish director Ingmar Bergman’s psychological horror[film of the same name.
