Answer To question 1: This phenomenon happens to many people and is considered a form of amnesia that occurs as a result of our brain switching from wakefulness to sleep. The parts of the brain involved in forming and keeping new memories do some interesting things when we sleep.
Answer To question 2: A false awakening is a common dream event in which you think you've awakened even though you're still dreaming. The symptoms can vary from one person to the next. Some dreams may be realistic, mundane, and straightforward, while others may be bizarre, frightening, and repetitive.
Explanation: hope it helps :)
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