Have you ever fallen asleep without difficulty, only to wake up suddenly at three or four in the morning? For some people, this happens occasionally, while others experience the same frustrating pattern almost every night. Although waking at a specific hour can seem mysterious, sleep specialists explain that there is usually a practical reason behind it. Throughout the night, the brain moves through several sleep stages, including deep sleep, lighter sleep, and rapid eye movement (REM) sleep. During the second half of the night, lighter sleep becomes more common, making brief awakenings more likely. These interruptions are not necessarily a sign of illness, but when they become frequent or leave you exhausted the following day, understanding the possible causes can help you improve your sle…Continue Reading
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