There are a few ways that REM rebound would occur.
This thing called “REM rebound” has the ability to create dreams that feel real, and dreams that haunt us for days. The strange thing about REM sleep is that when it’s deprived, it can rebound on the next sleep cycle, and with a greater intensity. If you are awakened during one of the REM cycles, you will be better able to remember these dreams that feel real. This alert state in sleep could be the reason why dreams are so detailed. Your heart races and your breathing does as well. Instead of seeing images from life, you see images from your dreams. The brain is engaged almost as if you are awake, except you are not.
There are several cycles of sleep, with REM being the most active cycle. To understand a bit more about dreams, you should study REM cycles and how they pertain to the overall vividness of dreams. Hmm…Let me start with scientific answers. We just have to take a look at a few theories to help us sleep better at night. The truth is, no one knows for sure where vivid dreams come from and why they come at all.
