My whole life, I've been able to reliably cause myself sleep paralysis. I just have to wake up facing a bright point light - like leaving the light on in a room

My whole life, I've been able to reliably cause myself sleep paralysis. I just have to wake up facing a bright point light - like leaving the light on in a room before attempting a nap. (Diffuse bright light like sunlight doesn't generally do it.) No idea why.