This feature is part of a National Post series by health reporter Sharon Kirkey on what is keeping us up at night. In the ...

Feeling pressure on the chest or a heavy weight on ... spiritual or demonic attack. Eight years into studying sleep paralysis and with hundreds of interviews with experiencers under his belt ...

Sleep paralysis demons are nightmarish hallucinations that ... are marked by sensations of pressure on the chest, along with feelings of suffocation or choking. Unlike intruder and incubus ...

These are often informally referred to by sufferers as "sleep paralysis demons". These "nightmarish ... being that would sit on top of someone's chest "to suffocate them". The Guardian said ...

While experiences vary, common sensations during sleep paralysis include a complete inability to move or speak, chest pressure and ... they’re interpreted as demonic possession or alien ...

Around 25% of the UK population suffer from some form of sleep disorder ... often by a demon-­like figure sitting on their chest. A related condition is the dramatically titled “Exploding ...