Supernatural Assault in Ancient Egypt: Seth, Evil Sleep & the Egyptian Vampire

You're in your bed. It's dark, you hear footsteps coming up the stairs and into your room. There's someone there - a presence. They lie on you or beside you, gripping you tightly, crushing you into the bed. You can't move. There may be a sound, a grunt or a strange smell. Time passes, you are paralysed with fear. Eventually the entity changes, expanding or contracting, moving away from you, sinking to the floor. With a great effort of will you manage to move the tip of your finger, then the...