Your brain woke you up at 3:47am again. No alarm. No noise. Just you, the ceiling, and that weird feeling that something is about to happen. Then your phone lights up. Message received. Cue the twilight zone music.
Scientists have actually been poking around this phenomenon for years. The leading theories range from "your body runs on internal biological rhythms" to "the universe is weird and we have no idea." Both are equally compelling if you ask me. Some people call it a sixth sense. Others call it coincidence. The truly adventurous call it proto-telepathy and immediately start a podcast about it.