https://www.telegraph.co.uk/health-fitness/body/suffering-sleep-paralysis/

'Ten years ago, Solomon Edwards was lying in bed, drifting off to sleep, when he became aware that he couldn’t move his legs. Nor, he soon realised, his arms, hands or feet. He tried to call for help but couldn’t make any sound. As his panic mounted, a small child appeared in front of him. She came within a few inches of his face, screamed and then burst into flames.'

I know someone who suddenly became a fervent Christian … and now frequently prays to Jesus … after experiencing a bout of asleep paralysis and being told that demons were involved.