As much as 7% of the population has experienced waking from sleep and being totally paralyzed but aware as mind and body become out of sync in REM cycles.
Your body paralyzes itself when you sleep to keep you from acting…
Your body paralyzes itself when you sleep to keep you from acting out your dreams. However, it is possible to wake up while still paralyzed; many people who have experienced this claim they felt a malevolent presence nearby.