RE: "I lay down in bed, suddenly my body froze, and I saw a dark entity in the room" – Sleep Paralysis explained

[milend]

think and based on the knowledge that I find, sleep is needed by the body is working during the day and night time body needed a break.
sometimes if the body was too tired will result in
the breath is not stable. a good sleep position is lying down and exposes her to the left of this is so that the stomach is not interrupted.
because the hull still work when sleeping.