Sleep Paralysis

Sleep paralysis is also considered one of the leading ideas behind alien abductions. It makes sense, since it happens when you wake up during the REM cycle of your sleeping. During a REM cycle, your body is basically shut down, in order to prevent you from enacting your dreams. The REM cycle is also where most dreaming takes place. That combination alone makes it sensible that waking up during a REM cycle would seemingly create the sensation of being abducted, as your imagnation is basically in overdrive, and you are unable to move.

Since we are on the subject of sleep issues, check up on Sexomnia