However, while theories about sleeping patterns and scientific explanations might go some way to explaining why you keep waking up at 3am, this is also a time of great paranormal importance!
What does it mean if I keep waking up at 3:00am? 3:00am has a special meaning to Christians and the superstitious. In the US, it is referred to as the 'witching hour'.
15:00 is widely recognized as the time of Jesus Christ’s death, so 03:00 is therefore seen as its direct opposite (and therefore associated with the opposite of Christ - the Devil!)
As far as science is concerned, however, the human body sleeps in cycles.
These tend to be around 4.5 - 5 hours of solid (mainly deep) sleep, followed by a lighter (and more sensitive) dream-filled sleep.
Many people wake up between these cycles, but few actually remember doing so.
If you go to sleep around 22:00 - 23:00, then this could explain waking up around 03:00 every night - because that would be the time between your two sleep cycles.
What can I do if I keep waking up at 3:00am?
There are many sleeping remedies, both medicinal and herbal, on the market these days - but my advice would be to see a doctor before taking any form of medication to treat restless sleep.
Melatonin is one of the most commonly-used sleeping aids in the US, and can be bought over the counter in many high-street pharmacies. It is a natural hormone that our bodies produce, so taking it shouldn't disrupt your natural balance.