Haunted: under attack (short story)

Being asleep and waking up from a dream laying on your side in the dark of night with no light but the pale dim glow of clock behind you when you notice a shadow hover over top of you then lower behind you. you think it cant be real but you suddenly feel paralyzed then feel pressure on your shoulder slowly pulling you from laying on your side to laying on your back still unable to move you try to tell yourself that you were just rolling with gravity, but that notion is quickly uprooted when you are completely on your back and rather than subsiding, the pressure increases pushing you down heavily against your mattress. Unable to breath or move you hear only the deafening pounding of your own pulse, and see nothing but the fading glow of the clock as the shadow transforms into an ominous cloud. Then with every ounce of will and desire to be free you can only with all you have just murmur a single whisper, a small word or phrase, the unsettling event ceases immediately, no one there, not a single sound, you slowly start to move your hands notice them wet and clammy with nervous sweat as they unclench. Now fear starts to paralyze you as you are so disturbed and distraught that you forgot what it was that you said to bring the attack to a halt . . . or if it would start again!