AI Overview
The detail of characters consistently waking up around 3:30 AM (or more generally the 3:00 AM to 4:00 AM range) is a common trope in horror, often referred to as the "witching hour" or "devil's hour".

但我覺得這只是因為半夜醒來的人通常會集中在這個時段, 感覺睡不好很痛苦.
所以有這個結論.