Actor Vicky Kaushal feels the phenomenon of sleep paralysis is scary. On Instagram, Vicky recently conducted an interactive session with fans. When a user asked him if he has ever seen a ghost in real life, Vicky opened up on the subject of sleep paralysis.

"I have experienced sleep paralysis couple of times. It's damn scary," he wrote. Sleep paralysis is a medical condition where a person, on waking up from sleep, experiences temporary inability to move or speak.